Não informado. (2012). Human Geography. Institute for Human Geography.
Chicagoスタイル(17版)引用形式Não informado. Human Geography. Boston, Mass: Institute for Human Geography, 2012.
MLA(8版)引用形式Não informado. Human Geography. Institute for Human Geography, 2012.
警告: この引用は必ずしも正確ではありません.