TY  - BOOK
T1  - A guide to bird finding west of the Mississippi /
DA  - 1981.
CY  - New York :
AU  - Pettingill, Olin Sewall,
ET  - 2d ed.
CN  - QL683.W4 P45 1981
CN  - QL683.W4
PB  - Oxford University Press,
PP  - New York :
PY  - 1981.
N1  - Includes index.
ID  - 104205
KW  - Birds
KW  - Bird watching
SN  - 019502818X :
TI  - A guide to bird finding west of the Mississippi /
ER  -