APA (7th ed.) Citation

Shepherd, W., & Shepherd, D. W. (2014). Energy studies (Third edition.). Imperial College Press.

Chicago Style (17th ed.) Citation

Shepherd, W., and D. William Shepherd. Energy Studies. Third edition. London: Imperial College Press, 2014.

MLA (9th ed.) Citation

Shepherd, W., and D. William Shepherd. Energy Studies. Third edition. Imperial College Press, 2014.