@book{6191,
	author = {Ross, Shepley L.},
	title = {Differential equations /},
	publisher = {Wiley,},
	year = {c1984.},
	address = {New York :},
	edition = {3rd ed.},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/description/wiley033/83021643.html}
}