Cita APA (7a ed.)

Zettelmeyer, F., Morton, F. M. S., & Silva-Risso, J. M. (2001). Cowboys or cowards: Why are Internet car prices lower? National Bureau of Economic Research.

Cita Chicago Style (17a ed.)

Zettelmeyer, Florian, Fiona M. Scott Morton, y Jorge Mario Silva-Risso. Cowboys or Cowards: Why Are Internet Car Prices Lower? Cambridge, MA: National Bureau of Economic Research, 2001.

Cita MLA (9a ed.)

Zettelmeyer, Florian, et al. Cowboys or Cowards: Why Are Internet Car Prices Lower? National Bureau of Economic Research, 2001.