@book{202858,
	author = {Levinson, Sanford},
	title = {The Louisiana Purchase and American expansion, 1803-1898},
	publisher = {Rowman & Littlefield Publishers},
	year = {c2005.},
	address = {Lanham, MD},
	url = {http://www.loc.gov/catdir/toc/ecip0510/2005009050.html}
}