000 003030000a22001210004500
245 _aDredging
110 _aInstitution of Civil Engineers, London GB
260 _aLondon
_bInst. of Civil Engineers
_c1968
500 _aConference proceedings
080 _a627.74
_bI6
041 _aEN
942 _cBK
999 _c120612
_d120612