TY  - SER
AU  -  Chapman, Frank M. 
TI  -  Color Key to North American Birds : :  
AV  - QL 
PY  - 2011///
PB  -  Project Gutenberg, 
KW  -  Birds -- North America
N1  -  Public domain in the USA;  Text
UR  -  http://www.gutenberg.org/ebooks/38003
ER  -