APA (7th ed.) Citation

Popp, D. (2003). Lessons from patents: Using patents to measure technological change in environmental models. National Bureau of Economic Research.

Chicago Style (17th ed.) Citation

Popp, David. Lessons from Patents: Using Patents to Measure Technological Change in Environmental Models. Cambridge, Mass: National Bureau of Economic Research, 2003.

MLA (9th ed.) Citation

Popp, David. Lessons from Patents: Using Patents to Measure Technological Change in Environmental Models. National Bureau of Economic Research, 2003.