Oppenheim, A. (1966). Questionnaire Design and attitude measurement. Heinemann.
Chicago Style CitationOppenheim, A.N. Questionnaire Design and Attitude Measurement. Heinemann, 1966.
MLA CitationOppenheim, A.N. Questionnaire Design and Attitude Measurement. Heinemann, 1966.
Warning: These citations may not always be 100% accurate.