Cita APA (7a ed.)
Martinell Sempere, A. (2009). New perspectives on sustainability. Documenta Universitaria.
Cita Chicago Style (17a ed.)
Martinell Sempere, Alfons. New Perspectives on Sustainability. Girona: Documenta Universitaria, 2009.
Cita MLA (9a ed.)
Martinell Sempere, Alfons. New Perspectives on Sustainability. Documenta Universitaria, 2009.
Precaución: Estas citas no son 100% exactas.