Cita APA (7a ed.)

Speight, J. G. (2007). Natural Gas: A Basic Handbook. Gulf Professional Publishing.

Cita Chicago Style (17a ed.)

Speight, James G. Natural Gas: A Basic Handbook. Gulf Professional Publishing, 2007.

Cita MLA (8a ed.)

Speight, James G. Natural Gas: A Basic Handbook. Gulf Professional Publishing, 2007.