TY  - BOOK
AU  - Ruffin,Roy,|d 1938-
AU  - Gregory,Paul R.
TI  - Principles of economics
SN  - 0673155080
U1  - 330 19
PY  - 1983///
CY  - Glenview, Ill.
PB  - Scott, Foresman
KW  - Economics
N1  - Includes Bibliography: p. 759-767 and  subject index
ER  -