Gilbert, G. N. (1993). Researching social life. Sage.
Lua i Stíl Chicago (17ú heag.)Gilbert, G. Nigel. Researching Social Life. London: Sage, 1993.
Lua MLA (9ú heag.)Gilbert, G. Nigel. Researching Social Life. Sage, 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.