Schuman, H., & Presser, S. (1981). Questions and answers in attitude surveys: Experiments on question form, wording, and context. Academic Press.
Lua i Stíl Chicago (17ú heag.)Schuman, Howard, agus Stanley Presser. Questions and Answers in Attitude Surveys: Experiments on Question Form, Wording, and Context. New York: Academic Press, 1981.
Lua MLA (9ú heag.)Schuman, Howard, agus Stanley Presser. Questions and Answers in Attitude Surveys: Experiments on Question Form, Wording, and Context. Academic Press, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.