MLA

Guo, Boyun, and Ali Ghalambor. Natural Gas Engineering Handbook. Gulf Publishing Company, 2005.

APA

Guo, B., & Ghalambor, A. (2005). Natural Gas Engineering Handbook. Gulf Publishing Company.

Chicago

Guo, Boyun, and Ali Ghalambor. Natural Gas Engineering Handbook. : Gulf Publishing Company, 2005.