Gaya APA

Raphael, M, G, ;, R, M. (2007). Conservation of rare or little-know species : Biological, social, and economic considerations . Washington: Island Press.

Gaya MLA

Raphael, Martin, G., ;, Randy, Molina. "Conservation of rare or little-know species : Biological, social, and economic considerations". Washington: Island Press, 2007. Text.