..Civil defense. Colorado y State's directors are named. News N 7 1951 p.39 State tests defenses in mock raid. illus. News N 18 151 p.23 Radio coordinates state defense. illus. News D 3 '51 p.19 State without single siren for use as air raid warning. 1952 p.1 Time, cash needed to solve problems. Post F 1 152 p.25 Training for emergency. illus. Post F 3 152 p.lAA 0
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