APA استشهاد

Oppenheim, A. N. (2005). Questionnaire design, interviewing and attitude measurement (New ed.). Continuum.

استشهاد بنمط شيكاغو

Oppenheim, A. N. Questionnaire Design, Interviewing and Attitude Measurement. New ed. London: Continuum, 2005.

MLA استشهاد

Oppenheim, A. N. Questionnaire Design, Interviewing and Attitude Measurement. New ed. Continuum, 2005.