El-sharkawy, A. L., & .Kummler, R. H. Advances in energy & environment. [s.n.].
Chicago-čujuhus (17. p.)El-sharkawy, Abdul Latif, juo Ralph H. .Kummler. Advances in Energy & Environment. [s.l.]: [s.n.].
MLA-čujuhus (9. p.)El-sharkawy, Abdul Latif, juo Ralph H. .Kummler. Advances in Energy & Environment. [s.n.].
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.