@book{70761,
	author = {Besant, W. H.},
	title = {Conic Sections: Treated Geometrically :},
	publisher = {Project Gutenberg,},
	year = {2009},
	address = {Salt Lake City, UT :},
	note = {Release date is 2009-09-05},
	url = {https://www.gutenberg.org/ebooks/29913}
}