Gilchrist, Frances M.C.; Liebenberg, H.; Van der Merwe, Christiaan F.(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1998)
Mushi, E.Z.; Isa, J.F.W.; Chabo, R.G.; Binta, M.G.; Kapaata, R.W.; Ndebele, R.T.; Chakalisa, K.C.(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1998)
Mushi, E.Z.; Binta, M.G.; Chabo, R.G.; Isa, J.F.W.; Modisa, Lorna A..(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1998)
Fitzgerald, S.L.; Greyling, J.M.; Bragg, R.R. (Robert Richard)(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1998)
Tice, G.A.; Bryson, N.R.; Stewart, C.G.; Du Plessis, B.; De Waal, D.T.(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1998)
Botha, C.J. (Christoffel Jacobus); Kellerman, T. Stephanus; Schultz, R.A. (Rowena Anitra); Erasmus, G.L.; Retief, E.P.(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1998)