000 00323nam a2200121Ia 4500
008 220201s1992 xx 000 0 eng d
082 _a363.73
_bSUReference
100 _aSuresh ,chander
245 0 _aParyavaran Pradushan aur Manaw Swaasthya /
260 _bArya Book Depot
_aNew Delhi
_c1992
300 _a132
942 _2ddc
999 _c7329
_d7329