APA (7th ed.) Citation

Xu, G., & Xu, J. (2013). Orbits : 2nd order singularity-free solutions / Guochang Xu, Jia Xu: 2nd order singularity-free solutions (Second edition.). Springer.

Chicago Style (17th ed.) Citation

Xu, Guochang, and Jia Xu. Orbits : 2nd Order Singularity-free Solutions / Guochang Xu, Jia Xu: 2nd Order Singularity-free Solutions. Second edition. Berlin: Springer, 2013.

MLA (9th ed.) Citation

Xu, Guochang, and Jia Xu. Orbits : 2nd Order Singularity-free Solutions / Guochang Xu, Jia Xu: 2nd Order Singularity-free Solutions. Second edition. Springer, 2013.

Warning: These citations may not always be 100% accurate.