@book{70289,
	author = {Vellas, Pierre },
	title = {Le Régionalisme International Et L'organisation Des Nations Unies / },
	publisher = {Editions a. Pedone,},
	year = {1948. },
	address = {Paris : },
	url = {https://fll.law.cu.edu.eg/fulltext/bks/B11-05068.pdf}
}