APA Citation

Willis, G. B., & Willis, G. B. (2005). Cognitive interviewing: A tool for improving questionnaire design. Thousand Oaks: SAGE Publications.

Chicago Style Citation

Willis, Gordon Bruce, and Gordon Bruce Willis. Cognitive Interviewing: A Tool for Improving Questionnaire Design. Thousand Oaks: SAGE Publications, 2005.

MLA Citation

Willis, Gordon Bruce, and Gordon Bruce Willis. Cognitive Interviewing: A Tool for Improving Questionnaire Design. Thousand Oaks: SAGE Publications, 2005.

Warning: These citations may not always be 100% accurate.