APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

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