APA (7th ed.) Citation

Polsby, N. W. (2004). How Congress evolves: Social bases of institutional change. Oxford University Press.

Chicago Style (17th ed.) Citation

Polsby, Nelson W. How Congress Evolves: Social Bases of Institutional Change. New York: Oxford University Press, 2004.

MLA (9th ed.) Citation

Polsby, Nelson W. How Congress Evolves: Social Bases of Institutional Change. Oxford University Press, 2004.