000			00257nam a2200109Ia 4500
008			220201s9999 xx 000 0 eng d
100			_aSUBRAMANIAN (N)
245		2	_aA TEXTBOOK OF
260			_bS. CHAND & CO. NEW DELHI
650			_aScience
942			_2ddc
999			_c100083 _d100083