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Randomization and field experimentation / Robert F. Boruch, Werner Wothke, editors.
- 300.724 R194
- Jossey-Bass,
- [1985] ©1985
- San Francisco :
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Designing and conducting survey research : a comprehensive guide / Louis M. Rea, Richard A. Parker.
- 001.433 R2813
- Rea, Louis M.,
- Jossey-Bass Publishers,
- [1992] ©1992
- San Francisco :