APA (7th ed.) Citation

Williams, J. (2001). Alcohol and marijuana use among college students: Economic complements or substitutes? National Bureau of Economic Research.

Chicago Style (17th ed.) Citation

Williams, Jenny. Alcohol and Marijuana Use Among College Students: Economic Complements or Substitutes? Cambridge, MA: National Bureau of Economic Research, 2001.

MLA (9th ed.) Citation

Williams, Jenny. Alcohol and Marijuana Use Among College Students: Economic Complements or Substitutes? National Bureau of Economic Research, 2001.

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