@book{84520,
	author = {Johnson, Douglas W. and Martonne, Emmanuel de, },
	title = {Paysages et problèmes geographiques de la terre americaine },
	editor = {Ambilly)},
	publisher = {Payot, },
	year = {1927 (},
	series = {Bibliotheque geographique},
	address = {Paris : }
}