@book{47245,
	author = {National Society for the Study of Education. and Henry, Nelson B.},
	title = {In-service education for teachers, supervisors, and administrators /},
	publisher = {NSSE,},
	year = {1957},
	series = {Yearbook of the National Society for the Study of Education ;},
	address = {Chicago :},
	note = {Includes index.}
}