Não informado. (2007). Geographical magazine. New Science Publications.
Chicagoスタイル(17版)引用形式Não informado. Geographical Magazine. London: New Science Publications, 2007.
MLA(8版)引用形式Não informado. Geographical Magazine. New Science Publications, 2007.
警告: この引用は必ずしも正確ではありません.