TY - BOOK AU - Case,Karl E. AU - Fair,Ray C. AU - Sharon M.Oster TI - Principles of economics SN - 0130464740 (pbk.) AV - HB171.5 CAS 2013 PY - 2013/// CY - Pearson Education Limited PB - Essex KW - Economics N1 - Includes bibliographical references and index ER -