00573cam a2200193   450000500170000099900150001724500400003202000180007210000320009004400160012225000090013804100080014730000310015550000050018683000050019126000370019608200150023395201310024820260711133924.0  c3620d3620  aBalanceo de Reacciones Químicasb  a9789992334270  aArévalo Álvarez, Raúl  aEl Salvador  a1ª   aspa  a40 p. fórmulas.; 26 cm.   a  v  aSan SalvadorbUCA Editoresc2009  a540bA683b  001040708CGaBCbBCd2010-01-01eLibrería UCAg2.00i001306l0o540/A683bp001306r2026-07-11 13:39:24t1w2026-07-11yBK