Citace podle APA (7th ed.)

Não informado. (2017). The Petroleum Engineer. Petroleum Engineer Publishing.

Citace podle Chicago (17th ed.)

Não informado. The Petroleum Engineer. Dallas, Tex: Petroleum Engineer Publishing, 2017.

Citace podle MLA (8th ed.)

Não informado. The Petroleum Engineer. Petroleum Engineer Publishing, 2017.

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