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.
Citazione stile Chigago Style (17a edizione)Abd El-Aziz, Durria, e 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.
Citatione MLA (9a ed.)Abd El-Aziz, Durria, e M. El Kafrawy. Comparison Between Pumps Which Work by Solar Energy Electricity, and Diesel. Arab republic of Egypt. The institute of National Planning, 1990.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.