Cita APA (7a ed.)

Weldeselassie, M., Assefa, M., & Shankar Sharma, H. (2007). Geography: Grade .. (Second Edition 2007.). Aster Nega Publishing Enterprise.

Cita Chicago Style (17a ed.)

Weldeselassie, Mesfin, Mulugeta Assefa, y Hari Shankar Sharma. Geography: Grade .. Second Edition 2007. Addis Ababa: Aster Nega Publishing Enterprise, 2007.

Cita MLA (9a ed.)

Weldeselassie, Mesfin, et al. Geography: Grade .. Second Edition 2007. Aster Nega Publishing Enterprise, 2007.