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Pod'em kul'turno-techničeskogo urovnja rabodego klassa SSSR
Kozlova, Olimpiada Vasil'evna, (1959)
Black vocational technical and industrial arts education. Development and history
Hall, Clyde W., (1973)
Education and training for engineers in Great Britain : Gästföreläsning vid chalmers Tekniska Högskola
Hoseason, D. B., (1948)