Dyfyniad APA

Rivkin, D. A., & Silk, L. (2013). Wind energy. Jones & BartlettLearning.

Dyfyniad Arddull Chicago

Rivkin, David A., and Laurel Silk. Wind Energy. Burlington: Jones & BartlettLearning, 2013.

Dyfyniad MLA

Rivkin, David A., and Laurel Silk. Wind Energy. Jones & BartlettLearning, 2013.

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