TY  - BOOK
AU  - Ditmars, Raymond L.
TI  - Field book of north american snakes
U1  - 598.126 
PY  - 1985///
CY  - New Delhi
PB  - International Books and Periodicals Supply Service
KW  - Zoonosis
KW  - Zoology -- Animals
N1  - 13/86-87 / 25.04.1986; zoonosis, animal diseases, zoonotic infections
ER  -