Cita APA (7th ed.)

Decker, S. L., & Schwartz, A. E. (2000). Cigarettes and alcohol: Substitutes or complementsn. National Bureau of Economic Research.

Cita Chicago (17th ed.)

Decker, Sandra L., i Amy Ellen Schwartz. Cigarettes and Alcohol: Substitutes or Complementsn. Cambridge: National Bureau of Economic Research, 2000.

Cita MLA (9th ed.)

Decker, Sandra L., i Amy Ellen Schwartz. Cigarettes and Alcohol: Substitutes or Complementsn. National Bureau of Economic Research, 2000.