Não informado. (1980). Singapore journal of tropical geography. National University od Singapore, Department of Geography.
Chicagoスタイル(17版)引用形式Não informado. Singapore Journal of Tropical Geography. Singapore: National University od Singapore, Department of Geography, 1980.
MLA(8版)引用形式Não informado. Singapore Journal of Tropical Geography. National University od Singapore, Department of Geography, 1980.
警告: この引用は必ずしも正確ではありません.