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Polls & surveys : understanding what they tell us / Norman M. Bradburn, Seymour Sudman.
- 303.38 B7982
- Bradburn, Norman M.,
- Jossey-Bass,
- San Francisco :
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Improving interview method and questionnaire design / Norman M. Bradburn, Seymour Sudman ; with the assistance of Edward Blair [and others].
- 300.723 B7982
- Bradburn, Norman M.,
- Jossey-Bass,
- San Francisco :
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Asking questions : the definitive guide to questionnaire design-- for market research, political polls, and social and health questionnaires / Norman M. Bradburn, Seymour Sudman, Brian Wansink.
- 300.723 B7982a 2004
- Bradburn, Norman M.,
- Jossey-Bass,
- [2004] ©2004
- San Francisco, CA :