APA aipamena

Kay, R. D. (2012). Farm management. New York: McGraw-Hill.

Chicago Style aipamena

Kay, Ronald D. Farm Management. New York: McGraw-Hill, 2012.

MLA aipamena

Kay, Ronald D. Farm Management. New York: McGraw-Hill, 2012.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.