MLA

Yang, Ming, and Xin Yu. Energy Efficiency: Benefits for Environment and Society. Springer London, 2015.

APA

Yang, M., & Yu, X. (2015). Energy Efficiency: Benefits for Environment and Society. Springer London.

Chicago

Yang, Ming, Xin Yu, and Xin Yu. Energy Efficiency: Benefits for Environment and Society. : Springer London, 2015.