Cita APA (7th ed.)

Gruber, J., Sen, A., & Stabile, M. (2001). Estimating price elasticities when there is smuggling: The sensitivity of smoking to price in Canada. National Bureau of Economic Research.

Cita Chicago (17th ed.)

Gruber, Jonathan, Anindya Sen, i Mark Stabile. Estimating Price Elasticities When There Is Smuggling: The Sensitivity of Smoking to Price in Canada. Cambridge: National Bureau of Economic Research, 2001.

Cita MLA (9th ed.)

Gruber, Jonathan, et al. Estimating Price Elasticities When There Is Smuggling: The Sensitivity of Smoking to Price in Canada. National Bureau of Economic Research, 2001.