TY  - BOOK
AU  - Ragland, Annie
AU  - Kumaresan, V.
TI  - Pteridophytes gymnosperms and palaeobotany
SN  - 9788189941598
U1  - 585.012 
PY  - 2011///
CY  - Nagercoil
PB  - Saras Publication
N1  - Includes index
ER  -