TY  - BOOK
AU  - Bhatnagar, S. P.
TI  - Gymnosperms
SN  - 9788122407921
U1  - 580 BHA 
PY  - 1996///
CY  - New Delhi 
PB  - New Age International
KW  - Gymnosperms -- Classification.
KW  - Gymnosperms -- Identification
ER  -