@book{5893,
	author = {O'Neill, Barrett.},
	title = {Elementary differential geometry /},
	publisher = {Elsevier Academic Press,},
	year = {c2006.},
	address = {Amsterdam ;},
	edition = {Rev. 2nd ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy0626/2005057176-d.html}
}