Não informado. (2016). Items & Issues. Social Science Research Council.
Chicagoスタイル(17版)引用形式Não informado. Items & Issues. New York: Social Science Research Council, 2016.
MLA(8版)引用形式Não informado. Items & Issues. Social Science Research Council, 2016.
警告: この引用は必ずしも正確ではありません.