@book {fierro_societe_1983,
	title = {La Soci{\'e}t{\'e} de g{\'e}ographie : 1821-1946},
	series = {Hautes {\'e}tudes ; 52},
	year = {1983},
	publisher = {Droz ; Paris : H. Champion},
	organization = {Droz ; Paris : H. Champion},
	address = {Gen{\`e}ve},
	author = {Alfred Fierro}
}
