Neitz, Albert Walter Herman; Verschoor, J.A. (Jan Adrianus), 1953-; Viljoen, G.J.; Bezuidenhout, J. Dürr; Oberem, P.T.; Putterill, John Fraser; Visser, L.; Vermeulen, N.M.J.; Bigalke, R.D.
(Published by the Government Printer, Pretoria., 1986)
The isolation of Cowdria ruminantium by means of Percoll density gradient centrifugation permits the recovery of partially purified viable populations of the organism possessing distinctly different densities. These ...