@book{217813,
	author = {Collins, David R.},
	title = {William McKinley, 25th president of the United States},
	publisher = {Garrett Educational Corp.},
	year = {c1990.},
	series = {Presidents of the United States},
	address = {Ada, Okla.},
	url = {http://www.loc.gov/catdir/toc/fy052/89039954.html}
}