TY  - BOOK
AU  -  Saunders,John Warren
TI  -  Patterns and principles of animal development / 
U1  -  636.08926 
PY  - 1970///]
CY  -  [New York] : 
PB  -  Macmillan ; 
KW  -  Embryology
KW  -  Developmental genetics
N1  -  Includes bibliographical references and index
ER  -