SELECT A.TxtUnidad, A.TxtFecha, A.TxtTotal, A.TxtKmFin, A.TxtNumFactura
FROM TR_SERV_BIMENSUAL_MANT_PREVENTIVO AS A, TR_REPORTE AS B
WHERE A.MantPreventivo=1 AND A.Cada20Km_6Meses=1 AND A.Cada40Km_1Año=0
AND A.TxtSucursal=B.TxtSucursal AND A.TxtMes=B.TxtMes
ORDER BY A.TxtUnidad;