TY  - BOOK
AU  - Mukherjee, Rabindra Nath
TI  - Introduction to vascular cryptogams : pteridophyta
SN  - 81-272-5767-5
U1  - 587 M896I 
PY  - 2009///
CY  - Ludhiana
PB  - Kalyani Publishers
ER  -