Directory of whole-body radioactivity monitors : (low activity levels) [prep.] International Atomic Energy Agency. - Vienna IAEA 1964 - [3], 704 p. ill. 25 cm. Bibliography: p. 670-689. Subjects--Topical Terms: RadioactivityRadioisotope scanning.--Measurement LC Class. No.: RM849 / .I55 Dewey Class. No.: 616.075 DIR 1964