000 00351nam a2200133Ia 4500
008 211214s9999 xx 000 0 und d
040 _cJayakar Knowledge Resource Centre
100 _aWilliams, F G
245 0 _aRural home sanitation
260 _bthe ushagram school press
_aAsansol
_c1939
300 _a59 p.
653 _aEngineering
942 _c1
999 _c15483
_d15483