1. Results of a Two-year Survey of Hay Quality on New York Farms;Burke,1950
2. Brody, S. 1945. Bioenergetics and Growth, pp. 475-483, 560-561 and 598. Reinhold Publishing Co., New York.
3. Eaton, H. P., Carpenter, C. A., Caverno, R. J., Johnson, R. E., Elliott, F. I., and Moore, L. A. A Comparison of U. S. No. 2 Field-cured and Field-baled Alfalfa Hay with Artificially-dried and Ground and Pelleted Alfalfa Hays as a Source of Carotene and Eoughage for Holstein Calves. J. Dairy Sci., 34: 124-135. 1951.
4. Eaton, H. D., Helmboldt, C. F., Avampato, J. E., Jungherr, E. L., and Dolge, K. L. Unpublished data. Storrs (Conn.) Agr. Expt. Sta., Storrs, Conn. 1951.
5. Effects of Vitamin A and Carotene Intake on Depletion Time of Young Dairy Calves;Jacobson;J. Dairy Sci.,1949