Gylfason, T., & Thorvaldur Gylfason. (1999). Principles of economic growth. Oxford [u.a.]: Oxford University Press.
Trích dẫn kiểu ChicagoGylfason, Thorvaldur, và Thorvaldur Gylfason. Principles of Economic Growth. Oxford [u.a.]: Oxford University Press, 1999.
Deismireacht MLAGylfason, Thorvaldur, và Thorvaldur Gylfason. Principles of Economic Growth. Oxford [u.a.]: Oxford University Press, 1999.
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