Subject categories
Agriculture, Business, Commerce & Industry → Industry - Social aspects
Agriculture, Business, Commerce & Industry → Land use - Remote areas
Agriculture, Business, Commerce & Industry → Steel industry and trade
Anthropology, Ethnology, Exploration & Travel → Geography
Anthropology, Ethnology, Exploration & Travel → Human geography
Anthropology, Ethnology, Exploration & Travel → Soviet Union - Description and travel
Climate, Environment, Natural Resources & Disasters → Climatology
Climate, Environment, Natural Resources & Disasters → Land use
Climate, Environment, Natural Resources & Disasters → Land use - Remote areas
Documentary
Documentary → Documentary films - United States
Economics, Philosophy, Politics, Religion & Sociology → Human geography
Economics, Philosophy, Politics, Religion & Sociology → Industry - Social aspects
Educational & Instructional
Educational & Instructional → Educational films
Mathematics, Science & Technology → Climatology
Mathematics, Science & Technology → Geography
Short films
Short films → Short films - United States