एपीए उद्धरण

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

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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