APA (7th ed.) Citation

Williams, H. (2017). How do patents affect research investments? National Bureau of Economic Research.

Chicago Style (17th ed.) Citation

Williams, Heidi. How Do Patents Affect Research Investments? Cambridge, MA: National Bureau of Economic Research, 2017.

MLA (9th ed.) Citation

Williams, Heidi. How Do Patents Affect Research Investments? National Bureau of Economic Research, 2017.

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