000 00286nam a22001337a 4500
003 SGT
020 _a978-15433426-73
100 _aRANDHAWA, S.S
245 _aENVIRONMENTAL SCIENCE
250 _a1st
260 _aS, VIKAS.2CO
_bJALENDHAR
_c2020
650 _a SCIENCE
942 _2ddc
_cBK
999 _c24746
_d24746