共 50 条
[41]
MASTITIS IN DAIRY-COWS
[J].
VETERINARY CLINICS OF NORTH AMERICA-LARGE ANIMAL PRACTICE,
1981, 3 (02)
:447-454
[45]
KETOSIS IN DAIRY-COWS
[J].
NORTH DAKOTA COOPERATIVE EXTENSION SERVICE CIRCULAR,
1979, (NV-40)
:1-2