00245nam a2200085Ia 4500008004100000041000800041100002000049245005200069260003800121230508s2017    xx            000 0 und d  aeng  aKRISHNAMURTHY V  aCHALLENGE AND THRILL OF PRE-COLLEGE MATHEMATICS  bNEW AGE INTERNATIONALc2017g2004