Books by Denver Research Institute. Chemical Division:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Denver Research Institute. Chemical Division: Environmental Protection Agency program status report: oil shale (The Group ;, 1978), also by United States. Environmental Protection Agency. Office of Environmental Engineering and Technology, Minerals United States. Environmental Protection Agency. Office of Energy, United States. EPA Oil Shale Work Group, and United States. EPA Oil Shale Research Group (page images at HathiTrust)- Denver Research Institute. Chemical Division: EPA program status report, oil shale : 1979 update (Washington, D. C. : U.S. Environmental Protection Agency, Office of Energy, Minerals and Industry ; Springfield, Va. : Available through the National Technical Information Service, 1979., 1979), also by United States. Environmental Protection Agency. EPA Oil Shale Work Group and Minerals United States. Environmental Protection Agency. Office of Energy (page images at HathiTrust)
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