TY  - BOOK
AU  - RAMAPRASAD DAS
TI  - SANKATIK JUKTIBIGYAN
U1  - 511.3/DAS/SAN V-3 
PY  - 1987///
CY  - KOLKATA
PB  - PASCHIM BANGA RAJYA PUSTAK PARSAD
KW  - MATHEMATICS
KW  - PRINCIPLES OF MATHEMATICS
ER  -