Weyers, W. H.Cilliers, Barend.2014-09-232014-09-2319781978http://hdl.handle.net/10413/11260Thesis (Ph.D.)-University of Natal, Pietermaritzburg, 1978.No abstract available.afGenetics.Dairy cattle.Theses--Genetics.'n Ontleding van die genetiese bydrae van KI-bulle tot die samestelling van die Friesras in Suid-Afrika.Thesis