共 37 条
- [1] BLACKSHAW A. W., 1953, Veterinary Record, V65, P872
- [2] BLACKSHAW A. W., 1957, A.I. Digest, V5, P6
- [3] BLACKSHAW A. W., 1955, Australian Veterinary Journal, V31, P124, DOI 10.1111/j.1751-0813.1955.tb05528.x
- [7] BRUCE W, 1956, 3RD INT C AN REPR, P27
- [8] CRAGLE RG, 1954, J DAIRY SCI, V37, P652