00378nam a2200121Ia 4500008004100000040001700041082002500058100002600083245005900109260004800168300001200216700002800228190329s9999||||xx |||||||||||||| ||und||  aNITILcNITIL  221sta307.332bB842B  aBresnahan, Timothy ed 0aBuilding high-tech clustersbsilicon valley and beyond  aCambridgebCambridge University Pressc2007  ax,369p.  aGambardella, Alfonso ed