Birks, J. S. (1978). Human capital on the Nile: Development and emigration in the Arab Republic of Egypt and the Democratic Republic of Sudan. International Labour Office.
芝加哥风格引文Birks, J. S. Human Capital on the Nile: Development and Emigration in the Arab Republic of Egypt and the Democratic Republic of Sudan. Geneva [Switzerland]: International Labour Office, 1978.
MLA引文Birks, J. S. Human Capital on the Nile: Development and Emigration in the Arab Republic of Egypt and the Democratic Republic of Sudan. International Labour Office, 1978.
警告：这些引文格式不一定是100％准确.