APA-čujuhus (7. p.)

Sorgenfrei, C. (2011). Optimum currency areas: A monetary union for southern Africa. Diplomica Verlag.

Chicago-čujuhus (17. p.)

Sorgenfrei, Christian. Optimum Currency Areas: A Monetary Union for Southern Africa. Hamburg: Diplomica Verlag, 2011.

MLA-čujuhus (9. p.)

Sorgenfrei, Christian. Optimum Currency Areas: A Monetary Union for Southern Africa. Diplomica Verlag, 2011.

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