AU  - Shukla,A.C..
TI  - Essentials of Paleobotany / 
SN  - 0 7069 1451 1
U1  - 581 
PY  - 1982///
CY  - N.Delhi-110002
PB  - Vikas Publishing House Pvt. Ltd. , 
KW  - Botany
N1  - NULL
ER  -