Institute of National Planning. (1974). An Economic study of the Egyptian cement industry. Institute of National Planning.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रInstitute of National Planning. An Economic Study of the Egyptian Cement Industry. Cairo: Institute of National Planning, 1974.
एमएलए (9वां संस्करण) प्रशस्ति पत्रInstitute of National Planning. An Economic Study of the Egyptian Cement Industry. Institute of National Planning, 1974.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.