APA (7th ed.) Citation

Lerner, J. (1999). 150 years of patent protection. National Bureau of Economic Research.

Chicago Style (17th ed.) Citation

Lerner, Josh. 150 Years of Patent Protection. Cambridge: National Bureau of Economic Research, 1999.

MLA (9th ed.) Citation

Lerner, Josh. 150 Years of Patent Protection. National Bureau of Economic Research, 1999.

Warning: These citations may not always be 100% accurate.