Becker, Gary S. Economic theory / Gary S. Becker ; with the assistance of Michael Grossman and Robert T. Michael. - New York : Knopf, c1971. - xii, 222 p. : ill. ; 25 cm. - Alfred A. Knopf books in economics . Includes bibliographical references and index. ISBN: 394314921 Subjects--Topical Terms: Microeconomics. LC Class. No.: HB171.5 / .B43 1971