El-sharkawy, A. L., & .Kummler, R. H. Advances in energy & environment. [s.n.].
芝加哥风格引文El-sharkawy, Abdul Latif, 与 Ralph H. .Kummler. Advances in Energy & Environment. [s.l.]: [s.n.].
MLA引文El-sharkawy, Abdul Latif, 与 Ralph H. .Kummler. Advances in Energy & Environment. [s.n.].
警告：这些引文格式不一定是100％准确.