APA
Possey D. A., United Nations Environment Programme, . (1999). Cultural and spiritual values of biodiversity. London: Intermediate Technology.
Chicago
Possey Darrel Addison, United Nations Environment Programme, . 1999. Cultural and spiritual values of biodiversity. London: Intermediate Technology.
Harvard
Possey D. A., United Nations Environment Programme, . (1999). Cultural and spiritual values of biodiversity. London: Intermediate Technology.
MLA
Possey Darrel Addison, United Nations Environment Programme, . Cultural and spiritual values of biodiversity. London: Intermediate Technology. 1999.