Cite

Central Africa. Route of the Alexander-Gosling expedition from the River Niger to the Red Sea, 1904-7 [cartographic material].

MLA

Royal Geographical Society (Great Britain). Central Africa. Route of the Alexander-Gosling expedition from the River Niger to the Red Sea, 1904-7 [cartographic material].. BRBL_00341. 1907. https://collections.library.yale.edu/catalog/15533513.

APA, 6th edition

Royal Geographical Society (Great Britain). (["BRBL_00341"])(1907)[Central Africa. Route of the Alexander-Gosling expedition from the River Niger to the Red Sea, 1904-7 [cartographic material].]. https://collections.library.yale.edu/catalog/15533513.