1. Revised Method for Determination of Vitamin A in Dry Carriers. Code VA-65;Anonymous,1951
2. Official Methods of Analysis,1950
3. Comparison of Methods for Estimation of Vitamin A in Calf Plasma;Avampato;J. Dairy Sci.,1953
4. The Importance of Fat Soluble Vitamins for Calves;Blaxter;J. Roy. Agr. Soc. Engl.,1951
5. Some Observations on the Biochemical and Physiological Events Associated with Diarrhea in Calves;Blaxter;Vet. Record,1953