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Last edited by Open Library Bot
December 5, 2010 | History
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Publish Date
1961
Language
English
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Book Details
Edition Notes
Includes bibliographies.
"Research ... was performed under contract no. 214 (6905) with the Cooperative Research Branch, United States Office of Education, Department of Health, Education, and Welfare."
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The Physical Object
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Feedback?December 5, 2010 | Edited by Open Library Bot | Added subjects from MARC records. |
January 31, 2010 | Edited by WorkBot | add more information to works |
December 9, 2009 | Created by WorkBot | add works page |