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008			260111s9999||||xx |||||||||||||| ||und||
082			_a510.7 B976T
100			_aBUTLER WREN
245		0	_aTEACHING OF SECONDARY MATHEMATICS
260			_aNEW YORK _c1951
300			_a549
942			_cBK
999			_c3680 _d3680