APA aipamena

Romberger, J. (1978). Biosystematics in Agriculture. John Wiley and Sons.

Chicago Style aipamena

Romberger, J.A. Biosystematics in Agriculture. New York: John Wiley and Sons, 1978.

MLA aipamena

Romberger, J.A. Biosystematics in Agriculture. John Wiley and Sons, 1978.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.