Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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