Ramage, J. (1997). Energy: A guidebook (2nd ed.). New York: Oxford University Press.
Trích dẫn kiểu ChicagoRamage, Janet. Energy: A Guidebook. 2nd ed. New York: Oxford University Press, 1997.
Deismireacht MLARamage, Janet. Energy: A Guidebook. 2nd ed. New York: Oxford University Press, 1997.
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