@book{80448,
	author = {Bennett, Albert B. and Nelson,L. Ted.},
	title = {Mathematics for elementary teachers :},
	publisher = {McGraw-Hill Higher Education,},
	year = {2004.},
	address = {New York :},
	edition = {6th ed.},
	url = {http://www.loc.gov/catdir/description/mh031/2002015191.html}
}