TY - BOOK AU - Sayre,John E. AU - Morris,Alan J. TI - Principles of microeconomics SN - 0070914591 : AV - HB172 .S354 2003 U1 - 338.5 21 PY - 2004/// CY - Toronto PB - McGraw-Hill Ryerson KW - Microeconomics N1 - Includes index ER -