From the Niger to the Nile,
by Lieutenant Boyd Alexander ... In two volumes ... With illustrations and maps.
Alexander, B., Talbot, P. Amaury. (1907). From the Niger to the Nile. London: E. Arnold.
Alexander, Boyd, 1873-1910, and Percy Amaury Talbot. From the Niger to the Nile. London: E. Arnold, 1907.
Warning: These citations may not always be complete (especially for serials).