000 00293nam a2200121Ia 4500
008 240928s9999 xx 000 0 und d
020 _a9789332581869
100 _aPalanisamy P N
245 0 _aEnvironmental Science
260 _aNoida, India
_bPearson
_c2017
300 _a144p.
942 _yBK
999 _c29446
_d29446