Cita APA (7a ed.)

Hallak, J. C., & Schott, P. K. (2008). Estimating cross-country differences in product quality. National Bureau of Economic Research.

Cita Chicago Style (17a ed.)

Hallak, Juan Carlos, y Peter K. Schott. Estimating Cross-country Differences in Product Quality. Cambridge, MA: National Bureau of Economic Research, 2008.

Cita MLA (9a ed.)

Hallak, Juan Carlos, y Peter K. Schott. Estimating Cross-country Differences in Product Quality. National Bureau of Economic Research, 2008.