APA aipamena

(1977). Corn and corn improvement. Wisconsin, USA: American Society of Agronomy, Inc.

Chicago Style aipamena

Corn and Corn Improvement. Wisconsin, USA: American Society of Agronomy, Inc, 1977.

MLA aipamena

Corn and Corn Improvement. Wisconsin, USA: American Society of Agronomy, Inc, 1977.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.