MLA

Guan, Tinggen Chen, and Hualin Liao. Theory and Technology of Drilling Engineering. Springer Singapore, 2021.

APA

Guan, G., Chen, T., & Liao, H. (2021). Theory and Technology of Drilling Engineering. Springer Singapore.

Chicago

Guan, Tinggen Chen, and Hualin Liao. Theory and Technology of Drilling Engineering. : Springer Singapore, 2021.