@book{3994,
	author = {Gordon, Thomas, and Van Niekerk, Anneke.},
	title = {Doeltreffende ouerskapleiding /},
	publisher = {D. Retief,},
	year = {c1982.},
	address = {Pretoria :},
	note = {Oorspronklike titel: P.E.T.--Parent effectiveness training.}
}