TY  - BOOK
AU  - Ruffin, Roy
AU  - xx, 686 p.
AU  - Title
TI  - Principles of economics
SN  - 0673155080
PY  - 1983///
CY  - Glenview, Ill.
PB  - Scott, Foresman
KW  - Economics
N1  - Includes indexes; Bibliography: p. 759-767
ER  -