Não informado. (2018). Report. Ohio State University, Institute of Polar Studies.
Chicagoスタイル(17版)引用形式Não informado. Report. Columbus, Ohio: Ohio State University, Institute of Polar Studies, 2018.
MLA(8版)引用形式Não informado. Report. Ohio State University, Institute of Polar Studies, 2018.
警告: この引用は必ずしも正確ではありません.