Não informado. (1972). Alternative sources of energy. Alternative Sources of Energy.
Chicago Style (17th ed.) CitationNão informado. Alternative Sources of Energy. Milaca, Minn: Alternative Sources of Energy, 1972.
MLA (8th ed.) CitationNão informado. Alternative Sources of Energy. Alternative Sources of Energy, 1972.
Warning: These citations may not always be 100% accurate.