TY  - BOOK
AU  - Brush,Alan H.
AU  - Clark,George A.
TI  - Perspectives in ornithology: essays presented for the centennial of the American Ornithologists' Union 
SN  - 0521248574
PY  - 1983///
CY  - Cambridge
PB  - Cambridge University Press
KW  - Birds
KW  - Addresses, essays, lectures
N1  - Includes index
ER  -