TY  - BOOK
AU  - Chattopadhyay,Debiprasad
TI  - Biggan ki o keno (Various aspects of science)
U1  - 501 19
PY  - 1991///
CY  - Dhaka
PB  - Muktadhara
KW  - Scientific progress
KW  - Spines
KW  - Inventions
N1  - cse
N2  - Science - General
ER  -