Sturton, M. (1992). Tonga: Development through agricultural exports. Pacific Islands Development Program, East-West Center.
Chicago-referens (17:e uppl.)Sturton, Mark. Tonga: Development Through Agricultural Exports. Honolulu, Hawaii: Pacific Islands Development Program, East-West Center, 1992.
MLA-referens (8:e uppl.)Sturton, Mark. Tonga: Development Through Agricultural Exports. Pacific Islands Development Program, East-West Center, 1992.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.