Rockville, Md. : U.S. Dept. of Health, Education, and Welfare, Public Health Service, Food and Drug Administration, Bureau of Radiological Health ; Washington : for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1973.

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Rockville, Md. : U.S. Dept. of Health and Human Services, Public Health Service, Food and Drug Administration, Bureau of Radiological Health, 1985.

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Rockville, Md. : U.S. Department of Health and Human Services, Center for Devices and Radiological Health, Office of Compliance, X-Ray Products Branch, 1982.

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Gaeta, Neil A

Rockville, Md. : U.S. Bureau of Radiological Health, 1975.

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National Committee on Radiation Protection (U.S.)

Washington, 1949.

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Illinois. Dept. of Nuclear Safety

Springfield, Ill. : The Department, [1993-

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Illinois. Dept. of Nuclear Safety

[Springfield, Ill.] : The Department,

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