000			00338nam a2200157Ia 4500
008			190201s9999 xx 000 0 und d
020			_a9.79E+12
082			_a660
082			_b6 SIN
100			_a"Singh ,D.P"
245		0	_aEnvironmental Microbiolo
260			_aNew delhi
260			_bNew Age
260			_c2004
300			_av-239
999			_c49718 _d49718