TY  - BOOK
AU  - Lumsden, Keith G,
AU  - Attiyeh,Richard
TI  - Microeconomics: A programmed book. by keith lumsden, richard attiyeh and george leland bach
AV  - HB171.5 L841970
PY  - 1970///
CY  - Englewood cliffs
KW  - Microeconomía
KW  - Instruccion programada
ER  -