Nicholson, Walter. Microeconomic theory : basic principles and extensions / Walter Nicholson, Christopher Snyder. - 11th ed. - Mason, Ohio : South-Western/Cengage Learning, c2012. - xxi, 758 p. : ill. ; 26 cm. Includes bibliographical references and index. ISBN: 1111525536 (hbk.) 9781111525538 (hbk.) LCCN: 2011928483 Subjects--Topical Terms: Microeconomics. LC Class. No.: HB172 / .N49 2012