APA aipamena

Peter H Raven. (1995). Understanding biology. Dubuque, Iowa: WCB.C. Brown.

Chicago Style aipamena

Peter H Raven. Understanding Biology. Dubuque, Iowa: WCB.C. Brown, 1995.

MLA aipamena

Peter H Raven. Understanding Biology. Dubuque, Iowa: WCB.C. Brown, 1995.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.