Michels, T. (1979). Solar energy utilization. Van Nostrand Reinhold.
Cita Chicago (17th ed.)Michels, Tim. Solar Energy Utilization. New York: Van Nostrand Reinhold, 1979.
Cita MLA (9th ed.)Michels, Tim. Solar Energy Utilization. Van Nostrand Reinhold, 1979.
Atenció: Aquestes cites poden no estar 100% correctes.