MLA

Du, Ruxu, and Longhan Xie. The Mechanics of Mechanical Watches and Clocks. Springer Berlin Heidelberg, 2013.

APA

Du, R., & Xie, L. (2013). The Mechanics of Mechanical Watches and Clocks. Springer Berlin Heidelberg.

Chicago

Du, Ruxu, and Longhan Xie. The Mechanics of Mechanical Watches and Clocks. : Springer Berlin Heidelberg, 2013.