000			00493nam a2200193Ia 4500
008			140908s9999 xx 000 0 und d
020			_a9788122416046
040			_aNISER LIBRARY
041			_aEnglish
082			_a502 _bDE-E
100			_aDe, AK
245			_aEnvironmental studies _cAnil Kumar De and Arnab Kumar De
250			_a2nd rev. ed.
260			_aNew Delhi _bNew age _c2008
300			_axv,247p.
650			_aENVIRONMENTAL SCIENCE
700			_aDe, AK _4Auth.
942			_cBK
999			_c1636 _d1636