000 00244nam a22000977a 4500
999 _c6392
_d6392
008 180625b ||||| |||| 00| 0 eng d
020 _a9200310199.
082 _a628.24 UNI
245 _aTHE DESIGN OF SHALLOW SEWER SYSTEMS
260 _aNAIROBI
_c1986.