Cita APA (7a ed.)
Yilma, A. D., & Awulachew, S. B. (2009). Characterization and atlas of the Blue Nile Basin and its sub basins.
Cita Chicago Style (17a ed.)
Yilma, Aster Denekew, y Seleshi Bekele Awulachew. Characterization and Atlas of the Blue Nile Basin and Its Sub Basins. 2009.
Cita MLA (9a ed.)
Yilma, Aster Denekew, y Seleshi Bekele Awulachew. Characterization and Atlas of the Blue Nile Basin and Its Sub Basins. 2009.
Precaución: Estas citas no son 100% exactas.