TY  - BOOK
AU  -  Ballard,William Whitney
TI  -  Comparative anatomy and embryology / 
U1  -  574.33 
PY  - 1964///]
CY  -  New York : 
PB  -  Ronald Press Co., 
KW  -  Anatomy, Comparative
KW  -  Embryology
N1  -  Includes bibliographical references
ER  -