@book{289007,
	author = {Pratt, Philip J., and Adamski, Joseph J.,},
	title = {Concepts of database management /},
	publisher = {Course Technology,},
	year = {2012.},
	address = {Boston, Mass. :},
	edition = {7th edition.},
	note = {Previous ed.: Clifton Park, N.Y.: Thomson Delmar Learning, 2008.}
}