@book{54760,
	author = {Ancel, J. and Hauser, M. Henri },
	title = {Histoire Diplomatique De L’europe, 1871-1914 /},
	publisher = {P.U.F,},
	year = {1929.},
	series = {Manuel De Politique Européenne},
	address = {Paris :},
	url = {https://fll.law.cu.edu.eg/fulltext/bks/B11-06831.pdf}
}