@book{6465,
	author = {Appell, Paul,},
	title = {Eléments de la théorie des vecteurs et de la géométrie analytique : },
	publisher = {Payot & cie,},
	year = {c1921.},
	series = {Collection Payot ;},
	address = {Paris : },
	note = {At head of title: Paul Appell.}
}