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 (17e ed.) BronvermeldingSchmidt, C. E., Sharkey. A.G, en R.A Friedel. Mass Spectometric Analysis of Product Water from Coal Gasification. [Washington, D.C.]: U.S. Dept. of the Interior, 1974.
MLA (9e ed.) BronvermeldingSchmidt, C. E., et al. Mass Spectometric Analysis of Product Water from Coal Gasification. U.S. Dept. of the Interior, 1974.
Let op: Deze citaties zijn niet altijd 100% accuraat.