@book{313,
	author = {Steyn, C. L. and Wessels, H. J.},
	title = {Nuwe algemene wetenskap, standerd 4 /},
	publisher = {Nasou,},
	year = {1981.},
	address = {Goodwood [Kaapstad] :},
	note = {'Nuwe sillabus'.}
}