@book{64086,
	author = {Berber, F. J},
	title = {Die Rechtsquellen Des Internationalen Wassernutzungsrechts / },
	publisher = {R. Oldenbourg Verlag , },
	year = {1955.},
	address = {München : },
	url = {https://fll.law.cu.edu.eg/fulltext/bks/B11-07862.pdf}
}