TY - BOOK AU - Amacher,Ryan C. AU - Ulbrich,Holley H. TI - Principles of economics SN - 0538800720 AV - HB171.5 .A43 1989 PY - 1989/// CY - Cincinnati PB - South-Western Pub. Co. KW - Economics N1 - Includes bibliographical references and index; Economics ER -