Oppenheim, A. N. (1966). Questionnaire design and attitude measurement. Heinemann.
Citación estilo ChicagoOppenheim, A. N. Questionnaire Design and Attitude Measurement. London: Heinemann, 1966.
Cita MLAOppenheim, A. N. Questionnaire Design and Attitude Measurement. Heinemann, 1966.
Warning: These citations may not always be 100% accurate.