Cita APA (7a ed.)

Nordhaus, W. D. (2001). New data and output concepts for understanding productivity trends. National Bureau of Economic Research.

Cita Chicago Style (17a ed.)

Nordhaus, William D. New Data and Output Concepts for Understanding Productivity Trends. Cambridge, MA: National Bureau of Economic Research, 2001.

Cita MLA (9a ed.)

Nordhaus, William D. New Data and Output Concepts for Understanding Productivity Trends. National Bureau of Economic Research, 2001.