@book{32554,
	author = {Mohammed Galal Hussein Ibrahim Elfekry and Adel A. Sorour , },
	title = {Geochemical and mineralogical studies of Umm Elguruf area : },
	publisher = {Mohammed Galal Hussein Ibrahim Elfekry , },
	year = {1996},
	address = {Cairo : },
	url = {http://172.23.153.220/th.pdf}
}