Hegger, M., Hartwig, J., Keller, M., & Reichel, A. (2012). Heat, Cool: Energy concepts, principles, installations. Birkhäuser.
Chicago Style (17th ed.) CitationHegger, Manfred, Joost Hartwig, Michael Keller, and Alexander Reichel. Heat, Cool: Energy Concepts, Principles, Installations. Basel: Birkhäuser, 2012.
MLA (9th ed.) CitationHegger, Manfred, et al. Heat, Cool: Energy Concepts, Principles, Installations. Birkhäuser, 2012.
Warning: These citations may not always be 100% accurate.