Subjects: Industrial hygiene--United States; Industrial accidents--United States; Hazardous occupations--United StatesPOLITICAL SCIENCE / Labor & Industrial Relations; LAW / Labor & Employment; SOCIAL SCIENCE / Death & Dying
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Subjects: Working class in motion picturesPERFORMING ARTS / Film / Guides & Reviews; PERFORMING ARTS / Film / History & Criticism; POLITICAL SCIENCE / Labor & Industrial Relations