Não informado. (1971). Educational broadcasting international. Centre for Educational Television Overseas.
Chicagoスタイル(17版)引用形式Não informado. Educational Broadcasting International. London: Centre for Educational Television Overseas, 1971.
MLA(8版)引用形式Não informado. Educational Broadcasting International. Centre for Educational Television Overseas, 1971.
警告: この引用は必ずしも正確ではありません.