00425ntaaa2200169 45000030003000000050017000030080021000200400037000410820017000781000025000952450037001202500011001572600049001683000010002176500016002277000012002430120251027202643.00714s1973 ag 01 aAR-BaBNbspacAR-BaBNeaacrdRIC a372.8300 R66 aRomero, Joaquín A aManual del alumno de sexto grado a16 ed. aBuenos Aires : bEditorial Kapelusz, cc1938 a520 p aeducación aOtros,