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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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Randomization and field experimentation / Robert F. Boruch, Werner Wothke, editors.
- 300.724 R194
- Jossey-Bass,
- [1985] ©1985
- San Francisco :