000 003170000a22001210004500
008 140223b1980 xxu||||| |||| 00| 0 eng d
041 _aEnglish
100 _a:OVESEN(NIELS KREBS)
245 _aADVANCES IN THE CONTINUING EDUCATION OF ENGINEERS
260 _aPARIS
_bUNESCO
_c1980
650 _a
_a
906 _a:UNESCO
999 _c135940
_d135940