Cita APA (7a ed.)

Markusen, J. R., & Maskus, K. E. (2001). A unified approach to intra-industry trade and direct foreign investment. National Bureau of Economic Research.

Cita Chicago Style (17a ed.)

Markusen, James R., y Keith Eugene Maskus. A Unified Approach to Intra-industry Trade and Direct Foreign Investment. Cambridge, MA: National Bureau of Economic Research, 2001.

Cita MLA (9a ed.)

Markusen, James R., y Keith Eugene Maskus. A Unified Approach to Intra-industry Trade and Direct Foreign Investment. National Bureau of Economic Research, 2001.