APA ציטוט

Gylfason, T., & Thorvaldur Gylfason. (1999). Principles of economic growth. Oxford [u.a.]: Oxford University Press.

Trích dẫn kiểu Chicago

Gylfason, Thorvaldur, và Thorvaldur Gylfason. Principles of Economic Growth. Oxford [u.a.]: Oxford University Press, 1999.

ציטוט MLA

Gylfason, Thorvaldur, và Thorvaldur Gylfason. Principles of Economic Growth. Oxford [u.a.]: Oxford University Press, 1999.