Protection against radiations from radium, cobalt-60, and cesium-137.
Washington : NBS, 1954.
vi, 60 págs. : ilustraciones
Serie: NBS Handbook ; 54
Obsoleta por Handbook 73 con título: Protection against radiations from sealed gamma sources.
"Prepared by the Subcommittee on Protection against Radiations from Radium, Cobalt-60, and Cesium-137 Encapsulated Sources.".