Não informado. (1979). Energy Engineering: Journal of the Association of Energy Engineers. Association of Energy Engineering.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Energy Engineering: Journal of the Association of Energy Engineers. Atlanta, Ga: Association of Energy Engineering, 1979.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Energy Engineering: Journal of the Association of Energy Engineers. Association of Energy Engineering, 1979.
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