@book{6638,
	author = {Mata-Toledo, Ramon A. and Cushman, Pauline K.},
	title = {Schaum's outline of fundamentals of relational databases },
	publisher = {McGraw-Hill,},
	year = {c2000.},
	series = {Schaum's outline series},
	address = {New York :},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/bios/mh041/00052542.html}
}