Não informado. (1971). Population Bulletin of the United Nations Economic Commission for Western Asia. United Nations, Economic Commission for Western Asia.
Citação do estilo Chicago (17ª ed.)Não informado. Population Bulletin of the United Nations Economic Commission for Western Asia. Beirut: United Nations, Economic Commission for Western Asia, 1971.
Citação MLA (8ª ed.)Não informado. Population Bulletin of the United Nations Economic Commission for Western Asia. United Nations, Economic Commission for Western Asia, 1971.
警告：这些引文格式不一定是100％准确.