000 00252nam a2200097Ia 4500
008 230331s9999 xx 000 0 und d
020 _a9781770254206
100 _aELS, JOHAN
_9177944
245 0 _aPROFESSIONAL ENGINEERING PRACTICE LEVEL 4
942 _cBK
_w561
_xJohn Tresidder
_y561
_zJohn Tresidder
999 _c747907
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