Actinobacillus seminis as a cause of abortion in a UK sheep flock
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VAN TONDER E. M., 1973, Infection of rams with Actinobacillus seminis, Journal of the South African Veterinary Association, 44, 235
WORTHINGTON R. W., 1968, Isolation of Actinobacillus seminis in South Africa, Journal of the South African Veterinary Medical Association, 39, 81