@book{41387,
	author = {Gage, N. L.},
	title = {The scientific basis of the art of teaching /},
	publisher = {Teachers College Press, Teachers College, Columbia University,},
	year = {1978.},
	series = {The Julius and Rosa Sachs memorial lectures},
	address = {New York :},
	note = {Delivered at Teachers College, Columbia University, April 1977.}
}