@book{17612,
	author = {Engelbrecht, S. W. B. and Institute for Manpower Research (Human Sciences Research Council)},
	title = {Akademiese prestasie van intellektueel bogemiddelde leerlinge.},
	publisher = {Raad vir Geesteswetenskaplike Navorsing,},
	year = {1974.},
	series = {Verslag / Instituut vir Mannekragnavorsing ;},
	address = {Pretoria :}
}