TY  - BOOK
AU  - Sengupta, Pramath Nath .
TI  - Prithivi Parichaya
U1  - 523.1 
PY  - 0000///Nd
CY  - Calcutta
PB  - Biswabharati Granthalai
KW  - Earth
KW  - G-Mathematics
ER  -