Correspondence : a critique : to the editor

Por J.A. Van Wyk, C.M.E. McCrindle
Publicado em 1997-07-01

Little anthelmintic drenching required for lambs finished over winter and spring on annually re-established irrigated pasture on the Highveld of Gauteng province, South Africa

Por J.A. Van Wyk, J. Meyer, L.J. Van Rensburg
Publicado em 2003-06-01

Die gevaar van wye verspreiping van weerstandbiedendheid teen wurmmiddels deur veldramprestasietoetssentra

Por J. A. van Wyk, P. C. van Schalkwyk, G. F. Bath, H. M. Gerber, Regina M.R. Alves
Publicado em 1991-12-01