1. Prenatal development of the bovine;Winters;Minn Agr Exp Sta Tech Bull,1942
2. Development of the egg of the cow up to the stage of blastocyst formation;Hamilton;J Anat,1946
3. Development of bovine blastocyst with a note on implantation;Chang;Anat Rec,1952
4. The process of placentation in the bovine;Marion;J Anim Sci,1958
5. Early embryology of the cow;Greenstein;J Dairy Sci,1958