APA (7th ed.) Citation

Bulmer, M., De Vaus, D. A., & Fielding, N. (2004). Questionnaires. Sage Publications.

Chicago Style (17th ed.) Citation

Bulmer, Martin, D. A. De Vaus, and Nigel Fielding. Questionnaires. London: Sage Publications, 2004.

MLA (9th ed.) Citation

Bulmer, Martin, et al. Questionnaires. Sage Publications, 2004.