00651nam a2200337Ia 4500010000500000020001800005082001900023100001800042110000500060245005200065250000500117260003900122300002100161490004100182500000500223600000500228610000500233611000500238630000500243650000500248651000500253654000500258700000900263710000900272711000500281720000500286730000500291740000500296752000500301856000700306 a a9789814327879 a510.9bH758.SS aHolton, Derek a aSecond step to mathematical olympiad problemsb a aNew JerseybWorld Scientificc2011 axi, 299p. Index aMathematical olympiad series v v. 7 a a a a a a a a abc abc a a a a a df