TY  - BOOK
AU  - Vasishta, P. C.
TI  - Vascular cryptogams: Pteridophyta
U1  - 587 VAS 
PY  - 1973///
CY  - New Delhi
PB  - S. Chand & Company Private Limited
KW  - Pteridophyta
KW  - Vascular cryptogams
ER  -