000 00385nam a2200145Ia 4500
005 20260205052010.0
008 260111s9999||||xx |||||||||||||| ||und||
082 _a614.703 G96T
100 _aGURCHARAN SINGH
245 0 _aTOPICS AND TERMS IN ENVIORNMENTAL SCIENCES
260 _aNEW DELHI
_bCOMMONWEALTH
_c1992
300 _a375P.
690 _aENVIORNMENTAL;SCIENCE
942 _cBK
999 _c106530
_d106530