@book{126168,
	author = {Toynbee, Arnold Joseph,  and Somervell, D. C.},
	title = {Estudio de la historia.},
	publisher = {Emecé Editores, S.A.},
	year = {1959.},
	address = {Buenos Aires},
	edition = {1a ed.},
	note = {Translation of: A study of history.}
}