共 9 条
[2]
Clifton-Hadley R. S., 1998, Cattle Practice, V6, P79
[5]
Hosie M., 1989, In Practice, V11, P87
[6]
JENNINGS A. R., 1949, Veterinary Record, V61, P380
[9]
Snider W. R., 1972, First international seminar on bovine tuberculosis for the Americas., P91