US-USSR cooperative program on environmental health. Proceedings of a workshop on health effects of oil shale development Denver, Colorado May 18-20, 1977.
D004782:Environmental Health; D005648:Fuel Oils; D007391:International Cooperation; D008906:Mining; D010578:Petroleum; D012822:Silicon Dioxide; D014586:USSR; D014481:United States
D005648:Fuel Oils; D010578:Petroleum; D012822:Silicon Dioxide