@book{21025,
	author = {Mohammed Essam Mohamed Kandil and Farouk Aboelela Kenawy , },
	title = {On waste water treating technology in petroleum industry : },
	publisher = {Mohammed Essam Mohamed Kandil , },
	year = {1997},
	address = {Cairo : },
	url = {http://172.23.153.220/th.pdf}
}