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Industrial education 1926-1928

Proffitt,Maris M.; United States. Bureau of Education. (Washington: Government Printing Office, 1929)

Industrial education

United States. Bureau of Education.; Proffitt,Maris M. (Washington: Government Printing Office, 1926)

Industrial education in 1924-1926

Proffitt,Maris M.; United States. Bureau of Education. (Washington: Government Printing Office, 1927)