Cita APA (7th ed.)
Quaschning, V. (2005). Understanding renewable energy systems. Earthsean.
Cita Chicago (17th ed.)
Quaschning, Volkar. Understanding Renewable Energy Systems. London: Earthsean, 2005.
Cita MLA (9th ed.)
Quaschning, Volkar. Understanding Renewable Energy Systems. Earthsean, 2005.
Atenció: Aquestes cites poden no estar 100% correctes.