1. Espe, D. L. Iowa Agr. Expt. Sta. Unpublished. 1946.
2. Gullickson, T. W. Minn. Agr. Expt. Sta. Private communication. 1946.
3. Tests Show Young Calves Need Butterfat;Gullickson;Minn. Farm & Home Sci.,1946
4. Various Oils and Fats as Substitutes for Butterfat in the Ration of Young Calves;Gullickson;J. Dairy Sci.,1942
5. Jacobson, N. L., Espe, D. L., Cannon, C. Y., and Thomas, B. H. Iowa Agr. Expt. Sta. Unpublished. 1946.