Curley, R. (2012). Renewable and alternative energy. Britannica Educational Pub., in association with Rosen Educational Services.
Chicago-Zitierstil (17. Ausg.)Curley, Robert. Renewable and Alternative Energy. New York: Britannica Educational Pub., in association with Rosen Educational Services, 2012.
MLA-Zitierstil (9. Ausg.)Curley, Robert. Renewable and Alternative Energy. Britannica Educational Pub., in association with Rosen Educational Services, 2012.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.