Book Review: Ziblatt,D. (2006). Structuring the State: The Formation of Italy and Germany and the Puzzle of Federalism. Princeton,NJ: Princeton University Press

Mahoney, J. , & Rueschemeyer, D. (2003). Comparative historical analysis in the social sciences. New York: Cambridge University Press .

Riker, W. (1964). Federalism: Origins, operation, significance. New York: Little, Brown .