TY  - BOOK
AU  - Peterson,Roger Tory
AU  - 
TI  - How to know the birds : 
U1  - 598/PEH(2) 
PY  - 0000///Mifflin
PY  - 1957///
CY  - Boston 
KW  - Birds
KW  - Zoology
N1  - Includes index and bibliography.
ER  -