APA (7e ed.) Bronvermelding

Schuman, H., & Fresser, S. (1981). Questions and answers in attitude surveys: Experiments on question form, wording, and contetext. Academic Press.

Chicago (17e ed.) Bronvermelding

Schuman, Howard, en Stanlley Fresser. Questions and Answers in Attitude Surveys: Experiments on Question Form, Wording, and Contetext. Academic Press, 1981.

MLA (8e ed.) Bronvermelding

Schuman, Howard, en Stanlley Fresser. Questions and Answers in Attitude Surveys: Experiments on Question Form, Wording, and Contetext. Academic Press, 1981.