000 00476nam a22001697i 4500
001 SXC021593
005 20260819093713.0
008 260101s1991 ii 000 0 eng d
082 _a614 DUG-E4
_222
100 _aDuggal, K N
245 1 0 _aElements of public health engineering /
_cDuggal, K N
250 _a4 ed.
260 _a
_bS Chand & Co. Pvt Ltd., New Delhi,
_c1991
300 _ap. ;
_c22 cm.
650 0 _aPublic health & related topics
999 _c16918
_d16918