Saffer, H., & Chaloupka, F. (1999). Tobacco advertising: Economic theory and international evidence. National Bureau of Economic Research.
Lua i Stíl Chicago (17ú heag.)Saffer, Henry, agus Frank Chaloupka. Tobacco Advertising: Economic Theory and International Evidence. Cambridge: National Bureau of Economic Research, 1999.
Lua MLA (9ú heag.)Saffer, Henry, agus Frank Chaloupka. Tobacco Advertising: Economic Theory and International Evidence. National Bureau of Economic Research, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.