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Training Methodology: Audiovisual theory, aids, and equipment
National Communicable Disease Center (U.S.)
出版U.S. Department of Health, Education, and Welfare, Public Health Service, Health Services and Mental Health Administration, National Communicable Disease Center, 1969
URLhttp://books.google.com.hk/books?id=umz0CIZWwXgC&hl=&source=gbs_api
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