Dyfyniad APA

Speight, J. G. (2011). An introduction to petroleum technology, economics, and politics. Scrivener ; Wiley.

Dyfyniad Arddull Chicago

Speight, James G. An Introduction to Petroleum Technology, Economics, and Politics. Salem, MA : Hoboken, N.J.: Scrivener ; Wiley, 2011.

Dyfyniad MLA

Speight, James G. An Introduction to Petroleum Technology, Economics, and Politics. Scrivener ; Wiley, 2011.

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