00357nam a2200157Ia 45000010006000000050017000060080041000230410008000640820015000721000034000872450025001212600009001463000028001556500008001836540008001911350420260306164806.0260306t2000||||xx |||||||||||||| ||spa||  aESP  a004.6bC12  aCaballero, José ManueleAUT 0aRedes de Banda Ancha  c2000  a252 páginas :c23 cm.  aGEN  aCCC