000 00309nam a2200133Ia 4500
008 170324s9999 xx 000 0 und d
082 _a387
100 _a"Willems, G."
245 0 _aInland and maritime waterways and ports
260 _bPergamon Press Ltd.
260 _c1981
365 _b0.00
942 _cBK
999 _c5892
_d5892