APA aipamena

Obsfeldt, R. L., Boyle, R. G., & Capilouto, E. I. (1998). Tobacco taxes, smoking restrictions and tobacco use. National Bureau of Economic Research.

Chicago Style aipamena

Obsfeldt, Robert L., Raymond G. Boyle, and Eli I. Capilouto. Tobacco Taxes, Smoking Restrictions and Tobacco Use. Cambridge: National Bureau of Economic Research, 1998.

MLA aipamena

Obsfeldt, Robert L., et al. Tobacco Taxes, Smoking Restrictions and Tobacco Use. National Bureau of Economic Research, 1998.