@book{6136,
	author = {National Council of Teachers of Mathematics.},
	title = {A Source book of mathematical applications},
	publisher = {Bureau of Publications, Teachers College, Columbia University,},
	year = {c1942.},
	series = {National Council of Teachers of Mathematics. Yearbook ;},
	address = {New York :},
	url = {http://catalog.hathitrust.org/api/volumes/oclc/4099957.html}
}