@book{6535,
	author = {Ramakrishnan, Raghu  and Gehrke, Johannes},
	title = {Database management systems /},
	publisher = {McGraw-Hill,},
	year = {c2003.},
	address = {Boston :},
	edition = {3rd ed.},
	url = {http://www.loc.gov/catdir/description/mh024/2002075205.html}
}