00638nam a2200157Ia 450000100070000000500170000700800410002410000350006524501340010024600220023426000460025630000360030250000500033865000560038870000360044428204620160527200336.0070615t1966    ilua          000 0 spa d1 aMcSwain, Eldridge Tracy2Local10aMatemática 6cE.T. McSwain, Kenneth E. Brown, Bernard H. Gundlach ; traducción por Mariano García Rodríguez ... [et al.].3 aMatemática seis  aRiver Forest, Ill.bLaidlaw Bros.cc1966.  a336 p.bill.(some col.)c24 cm.  aOn cover: McSwain, Brown, Gundlach and Cooke. 0aMathematicsxStudy and teaching (Elementary)2Local10aBrown, Kenneth E.d1904-2Local