1. Alba, J. de. 1945. The Response of Ovariectomized Heifers to Injections of Estrogen and and Progesterone. Thesis, Cornell University.
2. Patterns of Mammalian Reproduction;Asdell,1946
3. Studies on the Estrous Cycle of Dairy Cattle: Cycle Length Size of Corpus Luteum, and Endometrial Changes;Asdell;Cornell Vet.,1949
4. Factors Associated with Breeding Efficiency in Dairy Cattle;Chapman;Am. Soc. Animal Prod. Proc.,1934
5. Analysis of Variation in the Sexual Cycle and Some of its Component Phases with Special Reference to Cattle;Chapman;J. Agr. Research,1937