TY  - BOOK
AU  - Vasishta, P. C.
TI  - Pteridophyta  ( Vascular Cryptogams )
SN  - 81-219-0828-0
U1  - 587 
CY  - N. Delhi
PB  - S. Chand and Company Ltd.
KW  - Pteridophyta
N1  - 156
ER  -