MLA

Zhuang, Zhuo, et al. Extended Finite Element Method. Academic Press, 2014.

APA

Zhuang, Z., Cheng, B., Liao, J., & Liu, Z. (2014). Extended Finite Element Method. Academic Press.

Chicago

Zhuang, Zhuo, Binbin Cheng, Jianhui Liao, and Zhanli Liu. Extended Finite Element Method. : Academic Press, 2014.