1. Safeguarding information: Course outline : state and local gas specialist schools Author(s): United States. Office of Civilian Defense, author, issuing body. Publication: Washington, D.C. : Office of Civilian Defense, March 31, 1943 Subject(s): Chemical WarfareGases -- standardsCivil DefenseGas Poisoning -- prevention & controlDecontaminationRespiratory Protective DevicesWorld War IIUnited States
