Citazione Stile APA (7a Edizione)

Open University, Boyle, G., Everett, B., & Ramage, J. (2003). Energy systems and sustainability. Oxford University Press, in association with the Open University.

Citazione stile Chigago Style (17a edizione)

Open University, Godfrey Boyle, Bob Everett, e Janet Ramage. Energy Systems and Sustainability. Oxford ; New York: Oxford University Press, in association with the Open University, 2003.

Citatione MLA (8a ed.)

Open University, et al. Energy Systems and Sustainability. Oxford University Press, in association with the Open University, 2003.