TY  - BOOK
AU  - Bingham, R.
TI  - Economic concepts : a programmed approach
SN  - 0070449368
AV  - HB171.5 BIN 
PY  - 1981///
CY  - New York
PB  - McGraw- Hill
KW  - Economics
KW  - Self-instruction
KW  - Programmed instruction
KW  - sears
N1  - Includes  answers to   review tests
ER  -