Não informado. (1980). Singapore journal of tropical geography. National University od Singapore, Department of Geography.
Citação do estilo Chicago (17ª ed.)Não informado. Singapore Journal of Tropical Geography. Singapore: National University od Singapore, Department of Geography, 1980.
Citação MLA (8ª ed.)Não informado. Singapore Journal of Tropical Geography. National University od Singapore, Department of Geography, 1980.
警告：这些引文格式不一定是100％准确.