Gaya APA

Williams, G, P. (1984). Downstream Effects of Dams on Alluvial Rivers : Geological Survey Professional Paper 1286 . United States of America: U.S Geological Survey.

Gaya MLA

Williams, Garnett, P. "Downstream Effects of Dams on Alluvial Rivers : Geological Survey Professional Paper 1286". United States of America: U.S Geological Survey, 1984. Text.