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.
Atenció: Aquestes cites poden no estar 100% correctes.