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  1. 1
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    Educación Ambiental / by Velázquez de Castro, Federico

    Published 1995
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  2. 2
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    Ecología y desarrollo humano: un enfoque pedagógico ambiental / by Ríos Duque, José Gildardo

    Published 1998
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  3. 3
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    Estrategia para el desarrollo agropecuario y rural de El Salvador /

    Published 1998
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  4. 4
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    Explotación minerales San Sebastian y El Divisadero /

    Published 2000
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  5. 5
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    David y Goliat Banco Mundial y Glamis Gold vs Sipacapa : la resistencia de una comunidad Maya ante la minería de oro /

    Published 2005
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    Video DVD

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  6. 6
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    Sipakapa no se vende Sipakapa is not for sale = Sipakapa qal k'o pirk'ey xik /

    Published 2007
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    Video DVD

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  7. 7
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    Ciencias ambientales: ecología y desarrollo sostenible / by Nebel, Bernard J.

    Published 1999
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  8. 8
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    Plan de manejo del área natural, humedal de Olomega/

    Published 2004
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  9. 9
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    Geo El Salvador /

    Published 2004
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  10. 10
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    Para vivir en la tierra: equilibrio demográfico. Recursos para el futuro/ by Brubaker, Sterling

    Published 1973
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  11. 11
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    Gotas de rocío que van al mar Dewdrops drifting towards the sea : anti-minig resistance in Cabañas, El Salvador : resistencia anti-minera en Cabañas, El Salvador /

    Published 2011
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  12. 12
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    La destrucción de los habitats / by Hare, Tony

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  13. 13
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    El Salvador : reservas naturales = natural reseves /

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  14. 14
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    Segunda jornada de concientización de lucha contra la desertificación en El Salvador /

    Published 1999
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    Conference Proceeding Book

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  15. 15
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    Las lecciones del programa de acción forestal tropical ( PROAFT) / by Amo Rodríguez del, Silvia

    Published 2001
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  16. 16
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    Ciencias ambientales : ecología y desarrollo sostenible / by Nebel, Bernard J.

    Published 1999
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  17. 17
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    Código Nacional de Recursos Naturales Renovables y de Protección al Medio Ambiente /

    Published 2004
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  18. 18
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    Ecosystem management : lessons from around the world : a guide for development and conservation practitioners /

    Published 2000
    Publisher description
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  19. 19
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    El Futuro de nuestra tierra : enfrentando el desafío /

    Published 2000
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  20. 20
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    Cooperation in the European mountains 3 : the sustainable management of climbing areas in Europe / by Hanemann, Brigitte

    Published 2000
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