000 003120000a22001210004500
245 _aSafety guide : for men working in sewage disposal works
110 _aInstitution of Civil Engineers, London GB
260 _aLondon
_c1969
300 _a10 p.
080 _a614.8:628.3
_bI6
041 _aEN
942 _cBK
999 _c102092
_d102092