APA aipamena

Campbell, N. A. (1990). Biology. California: The Benjamin/Cummings Publishing Company.

Chicago Style aipamena

Campbell, Neil A. Biology. California: The Benjamin/Cummings Publishing Company, 1990.

MLA aipamena

Campbell, Neil A. Biology. California: The Benjamin/Cummings Publishing Company, 1990.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.