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The problem of liquid fuels (for aircraft engines) (1924)
NASA Technical Reports Server (NTRS) · leaf 13
N.A.C.A. Technical Memorandum No. 270 … 1895 1900 1905 1910 1915 1920 Year 7/orld production of petrole\amNASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
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