APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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