Dyfyniad APA

Greenspan, A. (2007). The Age of Turbulence. Princeton University Press.

Dyfyniad Arddull Chicago

Greenspan, Alan. The Age of Turbulence. New Jersey: Princeton University Press, 2007.

Dyfyniad MLA

Greenspan, Alan. The Age of Turbulence. Princeton University Press, 2007.

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