TY  - BOOK
AU  -  Romanoff,Alexis Lawrence
AU  -  Romanoff,Anastasia J.
TI  -  The avian egg/ 
U1  -  598.2 ROM 
PY  - 1949///]
CY  -  New York : 
PB  -  J. Wiley, 
KW  -  Birds
KW  -  Eggs
N1  -  Bibliography: p. 809-872
ER  -