TY  - BOOK
AU  - Duellman,William Edward
TI  - A Taxonomic Study of the Middle American Snake, Pituophis deppei
AV  - QH 
PY  - 2010///
PB  - Project Gutenberg
KW  - Snakes -- Latin America
N1  - Public domain in the USA; Electronic text
UR  - http://www.gutenberg.org/ebooks/31570
ER  -