Cita APA (7a ed.)

Puga, D., & Venables, A. (1997). Preferential Trading Arrangements and Industrial Location.

Cita Chicago Style (17a ed.)

Puga, D., y A. Venables. Preferential Trading Arrangements and Industrial Location. 1997.

Cita MLA (9a ed.)

Puga, D., y A. Venables. Preferential Trading Arrangements and Industrial Location. 1997.