Dyfyniad APA

Attiga, A. A. (1981). The Economic Development of the oil Exporting Countries. Oxford University.

Dyfyniad Arddull Chicago

Attiga, Ali Ahmed. The Economic Development of the Oil Exporting Countries. England: Oxford University, 1981.

Dyfyniad MLA

Attiga, Ali Ahmed. The Economic Development of the Oil Exporting Countries. Oxford University, 1981.

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