1. Feeding Urea to Dairy Cows;Archibald;Mass. Agr. Expt. Sta. Bull,1943
2. Ruminants Utilize Some Sulphur in Feedstuffs;Bailey;Ore. Agr. Expt. Sta. Ann. Rpt. Bull,1948
3. Bkiggs, H. M., Gallup, W. D., Dinning, J. S., Darlow, A. E., Stephens, F. E., and Campbell, W. D. Feeding Trials with Sheep, Swine, and Beef Cattle. Okla. Agr. Expt. Sta. Misc. Pub. MP-13. 1948.
4. A Double Change-over Design for Dairy Cattle Feeding Experiments;Cochran;J. Dairy Sci.,1941
5. Outline of a New Technique for Digestion Trial Procedure;Eheart;J. Dairy Sci.,1945