Thumann, A. (2002). Plant engineers and managers guide to energy conservation (8th edition.). Fairmont Press.
Chicago-viite (17. p.)Thumann, Albert. Plant Engineers and Managers Guide to Energy Conservation. 8th edition. Lilburn, GA: Fairmont Press, 2002.
MLA-viite (9. p.)Thumann, Albert. Plant Engineers and Managers Guide to Energy Conservation. 8th edition. Fairmont Press, 2002.
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