Não informado. (1957). Work papers. Summer Institute of Linguistics.
Chicagoスタイル(17版)引用形式Não informado. Work Papers. Dallas, Tex: Summer Institute of Linguistics, 1957.
MLA(8版)引用形式Não informado. Work Papers. Summer Institute of Linguistics, 1957.
警告: この引用は必ずしも正確ではありません.