एपीए उद्धरण

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

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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