Não informado. (1947). Items. Social Science Research Council.
Chicagoスタイル(17版)引用形式Não informado. Items. New York: Social Science Research Council, 1947.
MLA(8版)引用形式Não informado. Items. Social Science Research Council, 1947.
警告: この引用は必ずしも正確ではありません.