TY  - BOOK
AU  - Sharma,O.P.
TI  - Pteridophyta 
SN  - 9781259003349
U1  - 587/S531p 
PY  - 2012///
CY  - New Delhi, India 
PB  - Tata McGraw Hill..
KW  - Pteridophyta, Botany
N1  - Includes index Bibliography,Glossary
ER  -