O'Callaghan, G. (1993). The structure and operation of the world gold market. International Monetary Fund.
Citace podle Chicago (17th ed.)O'Callaghan, Gary. The Structure and Operation of the World Gold Market. Washington, D.C: International Monetary Fund, 1993.
Citace podle MLA (9th ed.)O'Callaghan, Gary. The Structure and Operation of the World Gold Market. International Monetary Fund, 1993.
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