@book{60583,
	author = {Hall, William Edward  and Higgins, Pearce },
	title = {A Treatise on International Law / },
	publisher = {At the Clarendon Press,},
	year = {1917.},
	address = {Oxford : },
	edition = {Seventh Edition},
	url = {https://fll.law.cu.edu.eg/fulltext/bks/B11-05346.pdf}
}