333.794
Q19U
           Quaschning, Volker
               Understanding renewable energy systems \ Volker Quaschning - London : Earthscan, 2006.
               xix, 272p.
                ISBN: 1844071367

147296
                Subjects: RENEWABLE ENERGY SOURCES; SOLAR ENERGY; WIND POWER; GREENHOUSE EFFECT; FOSSIL ENERGY SOURCES.