Citazione APA

H S Hawkins & A W van den Ban. (1996). Agricultural extension (2.). Blackwell science.

Stile di citazione Chicago

H S Hawkins e A W van den Ban. Agricultural Extension. 2. Blackwell science, 1996.

Citazione MLA

H S Hawkins e A W van den Ban. Agricultural Extension. 2. Blackwell science, 1996.