1. Rickets in Calves;Bechdel;Pa. Agr. Expt. Sta. Bul.,1933
2. The Vitamin D Requirement of Dairy Calves;Bechdel;Pa. Agr. Expt. Sta. Bul.,1938
3. Pathology of Rickets in Dairy Calves;Bechdel;Mich. Agr. Expt. Sta. Tech. Bul.,1936
4. Effectiveness of Ultraviolet Light Applied to the Head or Back Regions of Calves;Krauss;Jour. Dairy Sci.,1938
5. Vitamin D in the Nutrition of the Dairy Calf;Rupel;Wis. Agr. Expt. Sta. Res. Bul.,1933