MLA

Gupta, Vijai Kumar, and Maria G Tuohy. Biofuel Technologies. Dordrecht: Springer Berlin Heidelberg, 2013.

APA

Gupta, V. Kumar, & Tuohy, M. G. (2013). Biofuel Technologies. Dordrecht: Springer Berlin Heidelberg.

Chicago

Gupta, Vijai Kumar, and Maria G Tuohy. Biofuel Technologies. Dordrecht: Springer Berlin Heidelberg, 2013.