1. Allaire, F. R. 1965. Efficiency of Selection Practiced Among Dairy Cows with Respect to Production atid Type Appraisal Traits. Unpublished Ph.D. thesis, Cornell University, Ithaca, New York.
2. Evaluating Artificial Insetuillation Results;Bayley;J. Dairy Sci.,1964
3. Improvement by Selection;Cochran,1951
4. The Efficiency of Three Methods of Selection;Hazel;J. Heredity,1942
5. Genetic Relationships in Resistance to Mastitis in Dairy Cattle;Legates;J. Dairy Sci.,1952