Brace, I. (2008). Questionnaire design: How to plan, structure and write survey material for effective market research (2nd ed.). Kogan Page.
Cita Chicago (17th ed.)Brace, Ian. Questionnaire Design: How to Plan, Structure and Write Survey Material for Effective Market Research. 2nd ed. London ; Philadelphia: Kogan Page, 2008.
Cita MLA (9th ed.)Brace, Ian. Questionnaire Design: How to Plan, Structure and Write Survey Material for Effective Market Research. 2nd ed. Kogan Page, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.