@book{625,
	author = {Gravetter, Frederick J. and Forzano, Lori-Ann B.},
	title = {Research methods for the behavioral sciences /},
	publisher = {Thomson/Wadsworth,},
	year = {c2006.},
	address = {Australia ;},
	edition = {2nd ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy1515/2005925687-b.html}
}