توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

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

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

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

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

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