Travel guides Lonely Planet Guide: Samoan Islands and Tonga by Susannah Farfor and Paul Smitz Moon Travel Guide: Samoa-Tonga by David Stanley Bibliography Fiction External links Tonga. The World Factbook. Central Intelligence Agency. Tonga from UCB Libraries GovPubs 1970 establishments in Oceania Archipelagoes of the Pacific Ocean British Western Pacific Territories Christian states Commonwealth monarchies Countries in Oceania Countries in Polynesia English-speaking countries and territories Former British protectorates Island countries Member states of the Commonwealth of Nations Member states of the United Nations Small Island Developing States States and territories established in 1970