@book{25703,
	author = {Burns, Marilyn, and ebrary, Inc.},
	title = {50 problem-solving lessons},
	publisher = {Math Solutions Publications ;},
	year = {c1996.},
	address = {Sausalito, CA :},
	note = {"The best from 10 years of Math Solutions Newsletters."},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10231735}
}