Não informado. (1980). Singapore journal of tropical geography. National University od Singapore, Department of Geography.
Lua i Stíl Chicago (17ú heag.)Não informado. Singapore Journal of Tropical Geography. Singapore: National University od Singapore, Department of Geography, 1980.
Lua MLA (8ú heag.)Não informado. Singapore Journal of Tropical Geography. National University od Singapore, Department of Geography, 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.