Ashley, D. (1995). Sociological theory. Allyn and Bacon.
Lua i Stíl Chicago (17ú heag.)Ashley, David. Sociological Theory. Allyn and Bacon, 1995.
Lua MLA (8ú heag.)Ashley, David. Sociological Theory. Allyn and Bacon, 1995.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.