@book{188005,
	author = {Veblen, Oswald. and Withehead, J. H. C.},
	title = {The foundations of differential geometry / by Oswald Veblen and J. H. C. Whitehead.},
	publisher = {Cambridge University Press, 1932.},
	series = {Cambridge tracts in mathematics and mathematical physics ; },
	address = {Cambridge : }
}