共 7 条
[2]
BULL P. C., 1953, NEW ZEALAND JOUR SCI AND TECHNOL SER B, V34, P341
[3]
FILMER J. F., 1953, New Zealand Journal of Agriculture, V87, P402
[4]
LOCKLEY R. M., 1954, Veterinary Record, V66, P434
[5]
MARTIN CJ, 1936, J COUN SCI IND RES A, P96
[6]
Ritchie J. N., 1954, Veterinary Record, V66, P796
[7]
1940, NATURE, V145, P767