Cita APA (7a ed.)
Davey, A. G. (1998). National system planning for protected areas. IUCN.
Cita Chicago Style (17a ed.)
Davey, Adrian G. National System Planning for Protected Areas. Gland: IUCN, 1998.
Cita MLA (9a ed.)
Davey, Adrian G. National System Planning for Protected Areas. IUCN, 1998.
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