000 00375nam a2200157Ia 4500
008 230326s9999 xx 000 0 und d
020 _a9788178129082
082 _a363.7
_bSIN
100 _aSingh, B. B.
245 0 _aR Gupta`S Environmental Sciences
250 _a12th.
260 _a[s.l]:
_bRamesh Publishing House
_c
300 _a293.
365 _b220
650 _a
_a
999 _c18599
_d18599