@book{25666,
	author = {Rooyen, Izak Johannes Jacobus van.},
	title = {'n Ontleding van die gesinsagtergrond van Blanke sorgbehoewende kinders in Suid-Afrika},
	year = {1959.},
	series = {South Africa.  University, Pretoria.    Mededelings.  Communications,},
	address = {Pretoria,},
	note = {Summary in English.}
}