APA (7th ed.) Citation

Stein, R. S., & Powers, J. (2011). The energy problem. World Scientific.

Chicago Style (17th ed.) Citation

Stein, Richard S., and Joseph Powers. The Energy Problem. Singapore: World Scientific, 2011.

MLA (9th ed.) Citation

Stein, Richard S., and Joseph Powers. The Energy Problem. World Scientific, 2011.