TY  - BOOK
AU  - Amacher,Ryan C.
AU  - Ulbrich, Holley H.
TI  - Principles of economics
SN  - 0538800747 (pbk.)
PY  - 1989///
CY  - Cincinnati
PB  - South-Western
KW  - Economics
N1  - Includes Index; Includes bibliographical references
ER  -