Oppenheim. (1966). Questionnaire Design and Attitude Measurement. Heinemann.
Chicago Style (17th ed.) CitationOppenheim. Questionnaire Design and Attitude Measurement. Heinemann, 1966.
MLA (8th ed.) CitationOppenheim. Questionnaire Design and Attitude Measurement. Heinemann, 1966.
Warning: These citations may not always be 100% accurate.