Becker, H. A., & Bryant, C. G. A. (1990). What has sociology achieved. Macmillan.
Lua i Stíl Chicago (17ú heag.)Becker, H. A., agus Christopher G. A. Bryant. What Has Sociology Achieved. Houndmills, Basingstoke, Hampshire: Macmillan, 1990.
Lua MLA (9ú heag.)Becker, H. A., agus Christopher G. A. Bryant. What Has Sociology Achieved. Macmillan, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.