Kammeyer, Kenneth C. W. Sociology, experiencing changing societies / Kenneth C.W. Kammeyer, George Ritzer, Norman R. Yetman. - 4th ed. - Boston : Allyn and Bacon, c1990. - xxi, 744 p. : ill. (some col.) ; 27 cm. Ritzer's name appears first on the earlier edition. ISBN: 0205122035 LCCN: 89017547 LC Class. No.: HM51 .R46 1990 / .R46 1990 Dewey Class. No.: 301