Institute of National Planning. (1974). An Economic study of the Egyptian cement industry. Institute of National Planning.
芝加哥风格引文Institute of National Planning. An Economic Study of the Egyptian Cement Industry. Cairo: Institute of National Planning, 1974.
MLA引文Institute of National Planning. An Economic Study of the Egyptian Cement Industry. Institute of National Planning, 1974.
警告：这些引文格式不一定是100％准确.