TY  - BOOK
AU  - Lumsden, Keith
AU  - Attiyeh, Richard
TI  - Microeconomics: a programmed book
SN  - 135814391
U1  - 330.18 
PY  - 1970///
CY  - London
PB  - Prentice hall Inc.
KW  - Microecnomics
ER  -