TY - BOOK AU - O'Sullivan,Arthur AU - Sheffrin,Steven M. TI - Economics: principles and tools SN - 0130081515 (hbk. : alk. paper) AV - HB171.5 .O84 2003 U1 - 330 21 PY - 2003/// CY - Upper Saddle River, N.J. PB - Prentice Hall KW - Economics N1 - A variety of multi-medial instructional resources, including a web site, is available to supplement the text; Includes bibliographical references and index ER -