@book{22217,
	author = {Kidd, Kenneth Paul. and Brown, Kenneth E.,},
	title = {Teaching materials for mathematics classes,},
	publisher = {U.S. Dept. of Health, Education, and Welfare, Office of Education,},
	year = {[1953?]},
	series = {[U.S. Office of Education] Circular},
	address = {[Washington]}
}