Tohutoro APA (7th ed.)
ebrary, Inc, & Douwe, K. G. (2010). Clean coal. Nova Science Publishers, Inc..
Tohutoru Kātū Chicago (17th ed.)
ebrary, Inc, me Klaes G. Douwe. Clean Coal. New York: Nova Science Publishers, Inc., 2010.
Tohutoro MLA (9th ed.)
ebrary, Inc, me Klaes G. Douwe. Clean Coal. Nova Science Publishers, Inc., 2010.
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