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- [2] DAIRY-HERD IMPROVEMENT LETTER AGRICULTURAL RESEARCH SERVICE PUBLICATION, 1977, (NNE-6): : 1 - 16
- [4] DAIRY-HERD IMPROVEMENT LETTER - NATIONAL COOPERATIVE DAIRY-HERD IMPROVEMENT PROGRAM - STATE AND NATIONAL SUMMARY OF COW HERD AVERAGE RECORDS, 1978-79 SCIENCE AND EDUCATION ADMINISTRATION PUBLICATIONS, 1979, 55 (02): : 1 - 27
- [10] ANTHRAX IN DAIRY-HERD JOURNAL OF THE SOUTH AFRICAN VETERINARY ASSOCIATION-TYDSKRIF VAN DIE SUID-AFRIKAANSE VETERINERE VERENIGING, 1977, 48 (04): : 293 - 295