Cita APA (7a ed.)

Williams, M. A. J., & Faure, H. (1980). The Sahara and the Nile: Quaternary environments and prehistoric occupation in northern Africa. A.A. Balkema.

Cita Chicago Style (17a ed.)

Williams, M. A. J., y Hugues Faure. The Sahara and the Nile: Quaternary Environments and Prehistoric Occupation in Northern Africa. Rotterdam: A.A. Balkema, 1980.

Cita MLA (9a ed.)

Williams, M. A. J., y Hugues Faure. The Sahara and the Nile: Quaternary Environments and Prehistoric Occupation in Northern Africa. A.A. Balkema, 1980.