TY  - BOOK
AU  - Pandey,S.N., Trivedi, P.S.
AU  - x
TI  - A Texbook of pteridophyta: x
SN  - 0706998529
U1  - 587/P189t 
PY  - 1995///
CY  - New Delhi
PB  - Vikas
KW  - Botany
N1  - Includes
ER  -