(1975). Natural background radiation in the United States: Recommendations of the National Council on Radiation Protection and Measurements. Washington, DC: National Council on Radiation Protection and Measurements.
Chicago Style CitationNatural Background Radiation in the United States: Recommendations of the National Council On Radiation Protection and Measurements. Washington, DC: National Council on Radiation Protection and Measurements, 1975.
MLA CitationNatural Background Radiation in the United States: Recommendations of the National Council On Radiation Protection and Measurements. Washington, DC: National Council on Radiation Protection and Measurements, 1975.
Warning: These citations may not always be 100% accurate.