Federalism and the tug of war within
MLA
Ryan, Erin. Federalism and the Tug of War Within. New York: Oxford University Press, 2011
APA, 7th edition
Ryan, E. (2011). Federalism and the tug of war within. New York: Oxford University Press
Chicago, 17th edition
Ryan, Erin. Federalism and the tug of war within. New York: Oxford University Press, 2011