Não informado. (1971). Educational broadcasting international. Centre for Educational Television Overseas.
Citação do estilo Chicago (17ª ed.)Não informado. Educational Broadcasting International. London: Centre for Educational Television Overseas, 1971.
Citação MLA (8ª ed.)Não informado. Educational Broadcasting International. Centre for Educational Television Overseas, 1971.
警告：这些引文格式不一定是100％准确.