@book{67679,
	author = {Thoresen, Carl E. and National Society for the Study of Education.},
	title = {Behavior modification in education},
	publisher = {NSSE; distributed by the University of Chicago Press},
	year = {1973.},
	series = {Yearbook of the National Society for the Study of Education, [new ser.], 72d, pt. 1},
	address = {Chicago}
}