Schaefer, Richard T. Sociology / Richard T. Schaefer, Robert P. Lamm. - 4th ed. - New York : McGraw-Hill, c1992. - xxiii, 712 p. : ill. (some col.) ; 26 cm. ISBN: 0070552355 LCCN: 91017787 LC Class. No.: HM51 .S343 1992 / .S343 1992 Dewey Class. No.: 301