@book{197499,
	author = {Brown,  Kenneth E.  and Abell, Theodore L. },
	title = {Analysis of research in the teaching of mathematics /},
	publisher = {U. S.  Department of health, education and welfare, Office of education,},
	year = {1965.},
	series = {Eric Reports; United States; Office of Education; Bulletin},
	address = {Washington : }
}