TY  - BOOK
AU  - Nelson, Olin E
TI  - Comparative Embryology of the Vertebrates
U1  - 591.3 
PY  - 1953///
CY  - Newyork
PB  - Mcgraw-Hill
KW  - General Stack
KW  - Vertebrates--Embryology
KW  - Vertebrates
KW  - Zoology
ER  -