Belize - Guatemala Relations - Belize government site gives background of issue, structure of National Advisory Commission, and official documents and speeches. - http://www.belize-guatemala.gov.bz
Belize - Guatemala Territorial Differendum - Organization of American States. Includes documents, press releases, and texts of speeches. Most available in English and Spanish. - http://www.oas.org/documents/eng/belizeguatemala.asp
The Cost of Conflict: Anglo-Belize/Guatemala Territorial Issue - Master's thesis by Janine Sylvestre examines historical relations between the two nations, as well as their current cultures and forms of governments, and suggests courses for the future. - http://www.belizenet.com/bzeguat.html
Belize (British Honduras) - Guatemala Border - US Department of State International Boundary Study. Gives background of the dispute, relevant treaties, and details of boundary segments. - http://www.law.fsu.edu/library/collection/LimitsinSeas/IBS008.pdf