A W Van den Ban. (1988). Agricultural extension. New York: John Wiley & Sons, Inc.
Trích dẫn kiểu ChicagoA W Van den Ban. Agricultural Extension. New York: John Wiley & Sons, Inc, 1988.
MLA citiranjeA W Van den Ban. Agricultural Extension. New York: John Wiley & Sons, Inc, 1988.
Opozorilo: Ti citati niso vedno 100% točni.