(2000). Productivity, innovation, and economic performance. Cambridge, England: Cambridge University Press.
Čikaški stil citiranjaProductivity, Innovation, and Economic Performance. Cambridge, England: Cambridge University Press, 2000.
MLA način citiranjaProductivity, Innovation, and Economic Performance. Cambridge, England: Cambridge University Press, 2000.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.