APA aipamena

Todd,Nancy jack. (2005). A safe and sustainable world. American: Island Press.

Chicago Style aipamena

Todd,Nancy jack. A Safe and Sustainable World. American: Island Press, 2005.

MLA aipamena

Todd,Nancy jack. A Safe and Sustainable World. American: Island Press, 2005.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.