Babbie, E. R. (1982). Social research for consumers. Wadsworth Publishing Co..
Lua i Stíl Chicago (17ú heag.)Babbie, Earl R. Social Research for Consumers. Belmont: Wadsworth Publishing Co., 1982.
Lua MLA (9ú heag.)Babbie, Earl R. Social Research for Consumers. Wadsworth Publishing Co., 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.