APA aipamena

GEORGE, R. A. Vegetable seed production#Raymond A.T. Cambridge Press.

Chicago Style aipamena

GEORGE, Raymond A.T. Vegetable Seed Production#Raymond A.T. Cambridge Press.

MLA aipamena

GEORGE, Raymond A.T. Vegetable Seed Production#Raymond A.T. Cambridge Press.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.