Harper, Charles L. Exploring social change : America and the world / Charles L. Harper an Kevin T. Leicht. - 4th ed. - Upper Saddle River, N. J. : Prentice Hall, c2002. - x, 390p. : ill. ; 23 cm. illustrations ; cm. Includes bibliographical references and index. ISBN: 0130918385 Subjects--Topical Terms: Social changeSocial change--United States Subjects--Geographic Terms: United States--Social conditions--1945 LC Class. No.: HM831 / H23 2002