• 2 Microforms

• 2 Research
• 2 Research Support as Topic

• 2 Educational Resources Information Center (U.S.)
• 1 Educational Research Information Center (U.S.)
• 1 National Institute of Education (U.S.)
• 1 National Library of Education (U.S.)
• 1 United States. Department of Education
• 1 United States. Office of Educational Research and Improvement

• 3 English

• 1 United States

• 3 Periodicals
• 2 Bibliography
• 2 abstracts
• 2 directory
• 2 indexes
• 1 Abstracts

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