Oil Shales and Tar Sands United States. Department of Energy Published: 1977 Total Pages: 752 Get eBook
Specifications for Selected Hydraulic-powered Roof Supports Anthony J. Barry Published: 1969 Total Pages: 752 Get eBook
Synthetic Liquid Fuels United States. Congress. Senate. Committee on Public Lands and Surveys Published: 1943 Total Pages: 488 Get eBook
Department of the Interior and Related Agencies Appropriations for 1968 United States. Congress. House. Appropriations Published: 1967 Total Pages: 1444 Get eBook