@book{255896,
	author = {Gay, L. R. and Airasian, Peter W.},
	title = {Educational research :},
	publisher = {Merrill/Prentice Hall,},
	year = {c2003.},
	address = {Upper Saddle River, N.J. :},
	edition = {7th ed.},
	url = {http://edrev.asu.edu/reviews/rev352.htm}
}