TY  - BOOK
AU  - Chanda,S.C.,
AU  - Nag,N.K.,
TI  - Commercial arithmatic and elements of statistics
U1  - 513 
PY  - 1994////1996
CY  - Ludhiana
PB  - Kalyani publishers
KW  - Arithmetic
KW  - Commercial arithmatic and elements of statistics
ER  -