Dyfyniad APA

Pugel, T. A. (2008). International Economics (13th.). McGraw Hill Education.

Dyfyniad Arddull Chicago

Pugel, Thomas A. International Economics. 13th. New Delhi: McGraw Hill Education, 2008.

Dyfyniad MLA

Pugel, Thomas A. International Economics. 13th. McGraw Hill Education, 2008.

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