00427nam a2200145Ia 450000500170000000800460001703700120006304000200007504100130009508400230010810000190013124501080015026000090025830000140026720250508153619.0008  250505s9999    xx            000 0 eng d  aTextual  aFEDLbengcFEDL  aeng2eng  a371.426, NATqFEDL  aHenry Nelson B 0aForty-second year book of the national soicety for the study of education. Part 1. Vocational education  c1943  axvi,494p.