TY  - BOOK
AU  - ROBERT C BINGHAM
TI  - ECONOMIC CONCEPTS: A PROGRAMMED APPROACH
U1  - GN330.1B513E3 
PY  - 1966///
CY  - NEW YORK
PB  - MCGRAW-HILL BOOK COM.
KW  - ECONOMIC CONCEPTS: A PROGRAMMED APPROACH
ER  -