TY  - BOOK
AU  - Ruffin,Roy
AU  - Gregory,Paul R.
TI  - Principles of economics
SN  - 0673994880 (alk. paper)
AV  - HB171.5 .R82 1996
U1  - 330 RUF 
PY  - 1996///
CY  - Reading, Mass.
PB  - Addison-Wesley Educational Publishers
KW  - Economics
N1  - Includes bibliographical references and indexes
ER  -