@book{19230,
	author = {Du Toit, J. M. and Cilliers, C. A.},
	title = {Statistiese metodes /},
	publisher = {Kosmo,},
	year = {1963 ,},
	address = {Stellenbosch :},
	edition = {Hers. uitg. /},
	note = {Vergesel van: Statistiese oefeninge en tabelle.}
}