000			00348nam a2200145Ia 4500
008			211013s9999 xx 000 0 und d
082			_a153.93 _bHOW
100			_aBy Howard, W J _910224
245		0	_aDoing simple math in your head
250			_a1st
260			_c2013 _bOrient _aNew Delhi
300			_a157p.
650			_aMath _910225
942			_cBK
999			_c7326 _d7326