Cita APA (7th ed.)

Oppenheim, A. N. (1966). Questionnaire design and attitude measurement. Basic Books.

Cita Chicago (17th ed.)

Oppenheim, Abraham Naftali. Questionnaire Design and Attitude Measurement. New York: Basic Books, 1966.

Cita MLA (9th ed.)

Oppenheim, Abraham Naftali. Questionnaire Design and Attitude Measurement. Basic Books, 1966.