Du Toit, P.J.; Malan, A.I.; Groenewald, J.W.; Botha, M.L.; South Africa. Dept. of Agricultural Technical Services
(Pretoria : Government Printer, 1935)
(1) Details are presented of an experiment on the effects of sulphur and of compounds containing sulphur on the food consumption, weight increase, wool yield and disease of young wethers kept on a production ration for two ...