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Start Over You searched for: Subjects World+War+II Remove constraint Subjects: World+War+II Publication Year 1940 to 1949 Remove constraint Publication Year: <span class="from" data-blrl-begin="1940">1940</span> to <span class="to" data-blrl-end="1949">1949</span>

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7. Industrial hygiene manual supplement: pictures of processes, processes, toxic agents, suggested control measures, health hazards

9. Industrial hygiene manual: industrial toxic agents, chemical formula and synonyms, principal properties, principal industrial uses, poisoning-systemic, maximum permissible concentrations of atmopheric contaminants