@book{61757,
	author = {Plaisant, Marcel },
	title = {Traité de droit convventionnel international concernant la propriété industrielle /},
	publisher = {Sirey,},
	year = {1949.},
	address = {Paris :},
	url = {https://fll.law.cu.edu.eg/fulltext/bks/B11-07572.pdf}
}