Wawro, G. J., & Schickler, E. (2006). Filibuster: Obstruction and lawmaking in the U.S. Senate. Princeton University Press.
Lua i Stíl Chicago (17ú heag.)Wawro, Gregory J., agus Eric Schickler. Filibuster: Obstruction and Lawmaking in the U.S. Senate. Princeton, New Jersey: Princeton University Press, 2006.
Lua MLA (9ú heag.)Wawro, Gregory J., agus Eric Schickler. Filibuster: Obstruction and Lawmaking in the U.S. Senate. Princeton University Press, 2006.
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