@book{153462,
	author = {Butler, Anne M. and Wolff, Wendy.},
	title = {United States Senate election, expulsion, and censure cases, 1793-1990},
	publisher = {G.P.O.},
	year = {1995.},
	address = {Washington, D.C.},
	note = {Rev. ed. of: Senate election, expulsion, and censure cases from 1793 to 1972. 1972.}
}