TY - BOOK AU - Welch,Patrick J. AU - Welch,Gerry F. TI - Economics, theory & practice SN - 9780470450093 (pbk.) AV - HB171.5 .W3935 2010 U1 - 330 22 PY - 2010/// CY - .Hoboken, N.J PB - John Wiley KW - Economics N1 - Includes bibliographical references and index ER -