APA aipamena

A W Van den Ban. (1988). Agricultural extension. New York: John Wiley & Sons, Inc.

Chicago Style aipamena

A W Van den Ban. Agricultural Extension. New York: John Wiley & Sons, Inc, 1988.

MLA aipamena

A W Van den Ban. Agricultural Extension. New York: John Wiley & Sons, Inc, 1988.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.