7th International conference on Energy and Enviroment ( Cairo, International Conference on Energy, Development and Environment, Sharkawy, A., & Kummler, R. H. (2000). Advances in energy development and environment: Proceedings of Cairo 7th International conference on Energy and Enviroment Cairo. 11-13 March, 2000. [s.n.].
Чикаго стиль цитування (17-те видання)7th International conference on Energy and Enviroment ( Cairo, Development and Environment International Conference on Energy, Abdullatif Sharkawy, та Ralp H. Kummler. Advances in Energy Development and Environment: Proceedings of Cairo 7th International Conference on Energy and Enviroment Cairo. 11-13 March, 2000. [s.l.]: [s.n.], 2000.
Стиль цитування MLA (9-ме видання)7th International conference on Energy and Enviroment ( Cairo, et al. Advances in Energy Development and Environment: Proceedings of Cairo 7th International Conference on Energy and Enviroment Cairo. 11-13 March, 2000. [s.n.], 2000.