TY  - RPRT
TI  - [Book review] The sound approach to birding: A guide to understanding bird sound
AU  - C.S. Robbins
PY  - 2007
DO  - 10.1642/0004-8038(2007)124[1463:tsatba]2.0.co;2
UR  - https://pubs.usgs.gov/publication/5224201
ID  - 5224201
ER  -