Dyfyniad APA

Thumann, A., Niehus, T., & Younger, W. J. (201). Handbook of energy audits. Lilburn, GA : Fairmont Press ; Boca Raton, FL : Distributed by Taylor & Francis.

Dyfyniad Arddull Chicago

Thumann, Albert, Terry Niehus, and William J. Younger. Handbook of Energy Audits. Lilburn, GA : Fairmont Press ; Boca Raton, FL : Distributed by Taylor & Francis, 201.

Dyfyniad MLA

Thumann, Albert, et al. Handbook of Energy Audits. Lilburn, GA : Fairmont Press ; Boca Raton, FL : Distributed by Taylor & Francis, 201.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.