@book{61269,
	author = {Harrington, Jan L.},
	title = {SQL clearly explained /},
	publisher = {Morgan Kaufmann/Elsevier,},
	year = {2010},
	series = {The Morgan Kaufmann series in data management systems},
	address = {Burlington, MA. :},
	edition = {3rd ed.},
	note = {Includes index}
}