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Oil shale in Brazil
Oil shale in Spain
Petroleum and natural gas research, Bureau of Mines, fiscal years 1954, 1955 and 1956
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Published Year
1950-1959 (3) *
Subject
Natural gas--Research--United States (1)
Oil-shales--Brazil (1)
Oil-shales--Spain (1)
Petroleum--Research--United States (1)
Author
Kraemer, A. J. (3) *
Thorne, H. M. (1)
