@book{163553,
	author = {Van den Ban, A.W.  and Hawkins, H.S.},
	title = {Agricultural extension /},
	publisher = {Longman Scientific & Technical,},
	year = {1988.},
	address = {Harlow :},
	note = {Based on: Inleiding tot de voorlichtingskunde. 7th ed. 1985.}
}