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Symposium on Biological Effects and Measurement of Light Sources (2nd : 1980 : Rockville, Md.): Symposium on Biological Effects and Measurement of Light Sources, Rockville, Maryland, June 9-10, 1980. (U.S. Dept. of Health and Human Services, Public Health Service, Food and Drug Administration, Bureau of Radiological Health, 1981), also by United States. Bureau of Radiological Health (page images at HathiTrust)
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