@book{21860,
	author = {Swanson, Herbert Barthold,},
	title = {The state and the preservice preparation of teachers of vocational education (federally aided programs)},
	publisher = {U.S. Govt. print. off.,},
	year = {1941]},
	series = {United States. Office of education. Vocational division bulletin},
	address = {[Washington,}
}