@book{24058,
	author = {Penna, Carlos Víctor, and Sewell, Philip H.},
	title = {La planification des services de bibliothéque et de documentation /},
	publisher = {Unesco,},
	year = {1971.},
	series = {Manuels de l'Unesco à l'usage des bibliothèques ;},
	address = {Paris, (Francia) :},
	edition = {2e éd.},
	note = {Annexes}
}