Παραπομπή APA
Open University., Boyle, G., Everett, B., & Ramage, J. (2003). Energy systems and sustainability. Oxford ; New York: Oxford University Press, in association with the Open University.
Παραπομπή Chicago StyleOpen University., Godfrey Boyle, Bob Everett, and Janet Ramage. Energy Systems and Sustainability. Oxford ; New York: Oxford University Press, in association with the Open University, 2003.
Παραπομπή MLAOpen University., Godfrey Boyle, Bob Everett, and Janet Ramage. Energy Systems and Sustainability. Oxford ; New York: Oxford University Press, in association with the Open University, 2003.
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