TY  - SER
AU  -  Hardy, Laurence M.
TI  -  Morphological Variation in a Population of the Snake, Tantilla gracilis Baird and Girard 
AV  - QH 
PY  - 2010///
PB  -  Project Gutenberg, 
KW  -  Reptiles -- Variation
KW  -  Snakes -- Anatomy
KW  -  Flat-headed snake
N1  -  Public domain in the USA;  Text
UR  -  http://www.gutenberg.org/ebooks/34127
ER  -