Dyfyniad APA

Howell, Y., & Berney, J. A. (1979). Engineer's guide to solar energy. Solar Energy Information Services.

Dyfyniad Arddull Chicago

Howell, Yvonne, and Justin A. Berney. Engineer's Guide to Solar Energy. California: Solar Energy Information Services, 1979.

Dyfyniad MLA

Howell, Yvonne, and Justin A. Berney. Engineer's Guide to Solar Energy. Solar Energy Information Services, 1979.

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