World Trade Organization. (2002). Dispute settlement reports 1999: Volume 1. Cambridge University press.
Dyfyniad Arddull ChicagoWorld Trade Organization. Dispute Settlement Reports 1999: Volume 1. Cambridge: Cambridge University press, 2002.
Dyfyniad MLAWorld Trade Organization. Dispute Settlement Reports 1999: Volume 1. Cambridge University press, 2002.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.