@book{86050,
	author = {Kroenke, David M et al and Auer, David J.},
	title = {Database concepts /},
	publisher = {Pearson education Limited,},
	year = {2015},
	address = {England:},
	edition = {Seventh edition.},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/toc/fy15pdf02/2014010915.html}
}