Παραπομπή APA

Thumann, . A., & Dunning, S. (2008). Plant engineers and managers guide to energy conservation (9th ed.). Fairmont.

Παραπομπή Chicago Style

Thumann, Albert, και Scott Dunning. Plant Engineers and Managers Guide to Energy Conservation. 9th ed. Lilburn: Fairmont, 2008.

Παραπομπή MLA

Thumann, Albert, και Scott Dunning. Plant Engineers and Managers Guide to Energy Conservation. 9th ed. Fairmont, 2008.