TY  - GEN
AU  - Mason, Robert D
AU  - Hermanson, Roger H
AU  - Lange, Walter H
AU  - Rousos, Temoleon G
TI  - Business and consumer mathematics
T2  - Irwin Programmed Learning Aid Series
SN  - 0256012725
U1  - 511 
PY  - 1978///
CY  - Illinois
PB  - Richard D. Irwin
KW  - CONSUMER MATHEMATICS
ER  -