000 00305nam a2200133Ia 4500
008 230219s9999 xx 000 0 und d
020 _a9221055604
245 0 _aCommunication Engineering
260 _bInternational Labour Organisation
260 _c1987
300 _a235
942 _2met
942 _cBK
999 _c3579
_d3579