TY  - BOOK
AU  - K S Patwardhan and others
AU  - PATWARDHAN (K S)
AU  - JOSHI (S P)
AU  - MHATRE (R S)
TI  - Elements of Commercial Arithmetic
U1  - 387/1 23
PY  - 1976///
CY  - Allahabad
PB  - Kitab Mahal
KW  - Commercial arithmetic
ER  -