TY  - BOOK
ED  - Birbal Sahni Institute of Palaebotany (Lucknow).
TI  - Annual report 1991-92
U1  - RP 561 21st ed.
PY  - 1990///?]
CY  - Lucknow
PB  - Birbal Sahni Institute of Palaebotany
KW  - Palaebotany
ER  -