Cita APA (7th ed.)
Ryan, E. (2011). Federalism and the tug of war within. Oxford University Press.
Cita Chicago (17th ed.)
Ryan, Erin. Federalism and the Tug of War Within. New York: Oxford University Press, 2011.
Cita MLA (9th ed.)
Ryan, Erin. Federalism and the Tug of War Within. Oxford University Press, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.