Não informado. (1961). English Teaching Abstracts. British Council.
Chicagoスタイル(17版)引用形式Não informado. English Teaching Abstracts. London: British Council, 1961.
MLA(8版)引用形式Não informado. English Teaching Abstracts. British Council, 1961.
警告: この引用は必ずしも正確ではありません.