TY  - BOOK
AU  - Olson, Helen T., J.A.; (Haber, F. Barry), J.A.
AU  - Olson, Milton C.
TI  - Consumer and business arithmetic
SN  - 0-8224-1620-4
U1  -  513.93 
PY  - 1981///
KW  - Business mathematics
ER  -