@book{53400,
	author = {Hartmann, Frederick H.},
	title = {The Relations Of Nations /},
	publisher = {Macmillan,},
	year = {1954.},
	address = {New York ;},
	edition = {Sixth Edition.},
	url = {https://fll.law.cu.edu.eg/fulltext/bks/B11-06734.pdf}
}