000			00343nam a2200145Ia 4500
008			220926s9999 xx 000 0 und d
100			_aGagan Chatwal
245		0	_aDictionary of Science
250			_a1st Ed
260			_aMumbai
260			_bHimalaya Publishing House
260			_c1999
650			_aDictionary of Science
942			_cREF
999			_c21617 _d21617