Schmidt, C. E., Sharkey. A.G, & Friedel, R. (1974). Mass spectometric analysis of product water from coal gasification. U.S. Dept. of the Interior.
Chicago-viite (17. p.)Schmidt, C. E., Sharkey. A.G, ja R.A Friedel. Mass Spectometric Analysis of Product Water from Coal Gasification. [Washington, D.C.]: U.S. Dept. of the Interior, 1974.
MLA-viite (9. p.)Schmidt, C. E., et al. Mass Spectometric Analysis of Product Water from Coal Gasification. U.S. Dept. of the Interior, 1974.
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