TY  - BOOK
AU  - Shumway, Waldo
AU  - Adamstone, F.B
TI  - Introduction to vertebrate embryology
U1  - 596 
PY  - 1942///
CY  - New York
PB  - John Wiley and  Sons Inc
KW  - Zoology
KW  - Fetilization
KW  - Heredity
KW  - Respiratory organs
ER  -