Dyfyniad APA
ebrary, Inc, Jacobs, L. R., & King, D. S. (2009). The unsustainable American state. Oxford University Press.
Dyfyniad Arddull Chicago
ebrary, Inc, Lawrence R. Jacobs, and Desmond S. King. The Unsustainable American State. Oxford ; New York: Oxford University Press, 2009.
Dyfyniad MLA
ebrary, Inc, et al. The Unsustainable American State. Oxford University Press, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.