Institute of National Planning. (1974). An Economic study of the Egyptian cement industry. Institute of National Planning.
Chicago-referens (17:e uppl.)Institute of National Planning. An Economic Study of the Egyptian Cement Industry. Cairo: Institute of National Planning, 1974.
MLA-referens (9:e uppl.)Institute of National Planning. An Economic Study of the Egyptian Cement Industry. Institute of National Planning, 1974.
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