TY  - BOOK
AU  - Sharma O P
TI  - Pteridophyta Ed 2
SN  - 10: I403930309
U1  - 587 SHAP 
PY  - 2006///
CY  - New Delhi
PB  - Macmillan India Ltd.
KW  - Pteridophyta
KW  - Ed
KW  - 2
ER  -