TY  - BOOK
AU  - Thorpe, W. H.
TI  - Birds-Song: Biology of Vocal Communication And Expression in Birds
U1  - 598.2 
PY  - 1961///
CY  - Cambridge
PB  - The University Press
KW  - Pure Sciences
KW  - Zoological sciences
KW  - Birds
KW  - Songs
ER  -