Orbits

MLA

Xu, Guochang, and Jia Xu. Orbits. Springer Berlin Heidelberg, 2013.

APA

Xu, G., & Xu, J. (2013). Orbits. Springer Berlin Heidelberg.

Chicago

Xu, Guochang, and Jia Xu. Orbits. : Springer Berlin Heidelberg, 2013.