APA aipamena

RAVEN, P. H. (1993). Environment. Saunders College Publishing.

Chicago Style aipamena

RAVEN, Peter H. Environment. Saunders College Publishing, 1993.

MLA aipamena

RAVEN, Peter H. Environment. Saunders College Publishing, 1993.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.