Biofuels, solar and wind as renewable energy systems. Benefits and risks / Ed. D. Pimentel, 2008. - XXI, 504 p. с. - Текст : непосредственный.
Biofuels, solar and wind as renewable energy systems : benefits and risks / ed. D. Pimentel, 2008 r=on-line. - Текст : электронный.