Institute of National Planning. (1974). An Economic study of the Egyptian cement industry. Institute of National Planning.
Citazione stile Chigago Style (17a edizione)Institute of National Planning. An Economic Study of the Egyptian Cement Industry. Cairo: Institute of National Planning, 1974.
Citatione MLA (9a ed.)Institute of National Planning. An Economic Study of the Egyptian Cement Industry. Institute of National Planning, 1974.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.