000 00416nam a2200157Ia 4500
999 _c63055
_d63055
005 20210526212109.0
008 190703s9999 xx 000 0 und d
082 _a628 D866E
100 _aDuggal, K.N
245 0 _aElements of Public Health Engineering
260 _aNew Delhi
_bS.Chand Publishing
_c1980
300 _ap.386
650 _aPublic Health Engineering
650 _aDistribution System
942 _cSW