TY  - BOOK
AU  - Olin Sewall Pettingill
TI  - Ornithology in laboratory and field. Ed 4
U1  - 598.2 
PY  - 1970///
CY  - Minneapolis
PB  - Burgess Publishing Co
N1  - Olin Sewall Pettingill: Ornithology in laboratory and field. Ed 4.  (4th Ed)  Minneapolis.  Burgess Publishing Co, 1970.--(598.2PET)
ER  -