Abd El-Aziz, D., & El Kafrawy, M. (1990). Comparison between pumps which work by solar energy electricity, and diesel. Arab republic of Egypt. The institute of National Planning.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAbd El-Aziz, Durria, और M. El Kafrawy. Comparison Between Pumps Which Work by Solar Energy Electricity, and Diesel. [Cairo]: Arab republic of Egypt. The institute of National Planning, 1990.
एमएलए (9वां संस्करण) प्रशस्ति पत्रAbd El-Aziz, Durria, और M. El Kafrawy. Comparison Between Pumps Which Work by Solar Energy Electricity, and Diesel. Arab republic of Egypt. The institute of National Planning, 1990.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.