APA Style

Epstein, D., O'Halloran, S. (1999). Delegating powers : a transaction cost politics approach to policy making under separate powers . Cambridge, U.K. ; New York: Cambridge University Press.

MLA Style

Epstein, David., O'Halloran, Sharyn. "Delegating powers : a transaction cost politics approach to policy making under separate powers". Cambridge, U.K. ; New York: Cambridge University Press, 1999. Text.