Nickels, William G. Marketing principles / eng William G. Nickels. - 2nd ed. - Englewood Cliffs, N.J. : Prentice-Hall, 1982. - xxiii, 648 p. : ill. ; 24 cm. Includes bibliographical references and indexes. ISBN: 0135581974 LCCN: Subjects--Topical Terms: Marketing. Dewey Class. No.: 658.8 / NIC