APA-viite (7. p.)

Nordhaus, W. D. (2000). New data and output concepts for understanding productivity trends. National Bureau of Economic Research.

Chicago-viite (17. p.)

Nordhaus, William D. New Data and Output Concepts for Understanding Productivity Trends. Cambridge: National Bureau of Economic Research, 2000.

MLA-viite (9. p.)

Nordhaus, William D. New Data and Output Concepts for Understanding Productivity Trends. National Bureau of Economic Research, 2000.