Não informado. (1958). Journal of tropical geography. University of Singapore, Department of Geography.
Lua i Stíl Chicago (17ú heag.)Não informado. Journal of Tropical Geography. Singapore: University of Singapore, Department of Geography, 1958.
Lua MLA (8ú heag.)Não informado. Journal of Tropical Geography. University of Singapore, Department of Geography, 1958.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.