Measurement of strontium-89 and strontium-90 in environmental waters : a tentative reference method / by Quality Assurance Branch, Monitoring Systems Research and Development Division, Environmental Monitoring and Support Laboratory, Las Vegas, Nevada
Las Vegas, Nev. : U.S. Environmental Protection Agency, Office of Research and Development, Environmental Monitoring and Support Laboratory , Monitoring Systems Research and Development Division, Quality Assurance Branch ; Springfield, Va. : Available from National Technical Information Service, 1976.