@book{1554,
	author = {Broad, C. D.},
	title = {Leibniz :},
	publisher = {Cambridge University Press,},
	year = {1975.},
	address = {London :},
	note = {Cover title.},
	url = {http://www.loc.gov/catdir/enhancements/fy1004/74031784-d.html}
}