Thumann, . A., & Dunning, S. (2008). Plant engineers and managers guide to energy conservation (9th ed.). Fairmont.
Chicago-tyylinen lähdeviittausThumann, Albert, ja Scott Dunning. Plant Engineers and Managers Guide to Energy Conservation. 9th ed. Lilburn: Fairmont, 2008.
MLA-viiteThumann, Albert, ja Scott Dunning. Plant Engineers and Managers Guide to Energy Conservation. 9th ed. Fairmont, 2008.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.