@book{6967,
	author = {Bell, Robert J. T.},
	title = {An elementary treatise on coordinate geometry of three dimensions},
	publisher = {Macmillan,},
	year = {c1910, printing 1923},
	address = {London :},
	edition = {1st ed.},
	url = {http://catalog.hathitrust.org/api/volumes/oclc/1178918.html}
}