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Research-in-progress (Washington, D.C. : 1983)
- "Research in progress"@en
- "Bibliography"@en
- "Periodicals"@en
- "Research-in-progress (Washington, D.C. : 1983)"@en
- "Research-in-progress"@en
- "Research in progress : a national compilation of research projects on philanthropy, voluntary action, and not-for-profit activity"@en