@book{16160,
	author = {Cathcart, W. George and Pothier, Yvonne M. },
	title = {Learning mathematics in elementary and middle school :},
	publisher = {Pearson Merrill Prentice Hall, },
	year = {2005.},
	address = {Upper Saddle River, New Jersey : },
	edition = {4th ed.},
	note = {Includes bibliography and index.}
}