Cita APA (7th ed.)

Sampson, G. P., & Whalley, J. (2005). The WTO, trade, and the environment. Edward Elgar Pub.

Cita Chicago (17th ed.)

Sampson, Gary P., i John Whalley. The WTO, Trade, and the Environment. Cheltenham, [England]: Edward Elgar Pub, 2005.

Cita MLA (9th ed.)

Sampson, Gary P., i John Whalley. The WTO, Trade, and the Environment. Edward Elgar Pub, 2005.