Introductory sociology : consulting author, Joseph Curran, Jr. a basic self-instructional guide / Curran, Joseph. Sociology Programmed instruction. 301 CUI "A Leogryph book." Includes index. Bibliography: p. 185-189. New York : McGraw-Hill, c1977. c1977. 1977 Text vi, 218 p. ; eng A Basic self-instructional guide