TY  - BOOK
AU  - Rashid,A.
TI  - An introduction to pteridophyta: diversity and differentiation 
SN  - 0706909305
PY  - 1973///
CY  - New Delhi
PB  - Vikas Publishing House
KW  - Pteridophyta
N1  - Includes bibliographies and index; References: p. 267-275
ER  -