Citace podle APA (7th ed.)

Sigam, C., & Garcia, L. (2012). Extractive industries: Optimizing value retention in host countries. United Nations.

Citace podle Chicago (17th ed.)

Sigam, Claudine, a Leonardo Garcia. Extractive Industries: Optimizing Value Retention in Host Countries. New York, Geneva: United Nations, 2012.

Citace podle MLA (9th ed.)

Sigam, Claudine, a Leonardo Garcia. Extractive Industries: Optimizing Value Retention in Host Countries. United Nations, 2012.

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