00458nam a2200145Ia 450000500170000000800460001703700120006304000200007504100130009508400260010824500810013424500780021526000090029330000100030220250508154048.0008  250505s9999    xx            000 0 eng d  aTextual  aFEDLbengcFEDL  aeng2eng  a371.426943, GERqFEDL 0aPolytechnische bildung und erziehung in der deutshen demokratischen republik 0cPolytechnical Instruction And Education In The German Democratic Republic  c1962  a111p.