Agency, Central Intelligence. 2014. The World Factbook: Guam. In.
https://www.cia.gov/library/publications/the-world-factbook/geos/gq.html
@incollection{centralintelligenceagencyguam2014, author = {Agency, Central Intelligence}, title = {The World Factbook: Guam}, url = {https://www.cia.gov/library/publications/the-world-factbook/geos/gq.html}, year = {2014} }