00445nam a2200169   45000010006000000050017000060080041000230200015000640350003000790410007000820500022000892450050001112500008001612600048001695000022002177000036002391697520230410105346.0060907n1993    dr                  spa    a8436803124    aES14aHB 171.5 E17 19930 aEconomía /cDavid Burningham ..... [et al.]  a5ta  aMadrid :bEdiciones Pirámide,c1993        aAprende Tú Solo  aBurningham, David .... [et al.]