APA aipamena

Raven, P. H. (2005). Biology (7th ed.). Boston: McGraw-Hill, Higher Education.

Chicago Style aipamena

Raven, Peter H. Biology. 7th ed. Boston: McGraw-Hill, Higher Education, 2005.

MLA aipamena

Raven, Peter H. Biology. 7th ed. Boston: McGraw-Hill, Higher Education, 2005.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.