@book{265803,
	author = {Wickett, Maryann. and Burns, Marilyn,},
	title = {Lessons for extending place value :},
	publisher = {Math Solutions Publications,},
	year = {c2005.},
	series = {The teaching arithmetic series},
	address = {Sausalito, CA :},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/toc/ecip057/2005003493.html}
}