Dyfyniad APA

Gylfason,Thorvaldur. (1999). Principles of economic growth. Oxford University Press.

Dyfyniad Arddull Chicago

Gylfason,Thorvaldur. Principles of Economic Growth. New York: Oxford University Press, 1999.

Dyfyniad MLA

Gylfason,Thorvaldur. Principles of Economic Growth. Oxford University Press, 1999.

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