000 00284nam a2200121Ia 4500
020 _a8170244609
082 _a362.10954 PAT/H
245 0 _aHealth,Environment And Development
260 _bAshish Publishing
_aNew Delhi
_c1992
300 _a308p
700 _aPati, R. N.
942 _cBK
999 _c51276
_d51276