TY  - BOOK
AU  - Nelsen,Olin Everett
TI  - Comparative embryology of the vertebrates: with 2057 drawings and photographs grouped as 380 illus
AV  - QL959 .N4
U1  - 591.33 
PY  - 1953///]
CY  - New York
PB  - Blakiston
KW  - Vertebrates
KW  - Embryology
KW  - Local
KW  - Comparative embryology
ER  -