Control of semivolatile radionuclides in gaseous effluents at nuclear facilities. - Vienna IAEA 1982 - 56 p. ill. 24 cm. - IAEA Technical reports series no. 220 International Atomic Energy Agency Technical reports series no. 220 . Bibliography: p. 51-54. ISBN: 9201254822 Subjects--Topical Terms: Radioisotopes--Safety measures.Ruthenium. Dewey Class. No.: 621.4837 CON 1982