| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Cognitive Interviewing: A Tool for Improving Questionnaire Design | 978-0-7619-2803-4 (0-7619-2803-0) | 2004 |
| Cognitive Interviewing: A Tool for Improving Questionnaire Design | 978-0-7619-2804-1 (0-7619-2804-9) | 2004 |
B. W. · Dr. Gordon B. Willis · G.B. · G. W. · Gordon Willis