Analysis of information sources in references of the Wikipedia article "蒙特維多國家權利義務公約" in Chinese language version.
Delegations from twenty states participated - from the United States and all those in Latin America except Costa Rica (provision was made for Costa Rica to later sign the conventions and treaties preseented in the conference).
Delegations from twenty states participated - from the United States and all those in Latin America except Costa Rica (provision was made for Costa Rica to later sign the conventions and treaties preseented in the conference).