TY  - BOOK
AU  - Cohen,Jack
TI  - Living embryos: an introduction to the study of animal development 
T2  - The Commonwealth and International Library. Zoology division
U1  - 571.86  
PY  - 1967///
CY  - Oxford, New York
PB  - Pergamon Press
KW  - Embryology
N1  - Bibliography: p. 137-140
ER  -