Schaefer, Richard T. Sociology / Richard T. Schaefer - 5th ed. - New York : McGraw-Hill, c1995. - xxiv, 677 p. : ill. ; 24 cm. ISBN: 0070569592 LCCN: Subjects--Topical Terms: Sociology. Social problems. United_statesSocial policy. LC Class. No.: HM51 / .S345 1995