@book{47512,
	author = {Schwarzenberger, Georg,},
	title = {Power politics :},
	publisher = {Stevens,},
	year = {1951},
	series = {The Library of world affairs ;},
	address = {Londod :},
	edition = {Second edition},
	url = {https://fll.law.cu.edu.eg/fulltext/bks/B11-05775.pdf}
}