एपीए उद्धरण

Freris, L. L. (2008). Renewable energy in power systems. Chichester, U.K: John Wiley & Sons.

शिकागो स्टाइल उद्धरण

Freris, L. L. Renewable Energy in Power Systems. Chichester, U.K: John Wiley & Sons, 2008.

एमएलए उद्धरण

Freris, L. L. Renewable Energy in Power Systems. Chichester, U.K: John Wiley & Sons, 2008.