Hobley, L. F. Opening Africa / L F Hobley, Pictures by Richard Ogle and G. Randall; maps by Clare Thornhill. - 3rd ed. - London : Methuen's Outlines, c1962. - 86 p. : ill. ; 22 cm. Includes index. Subjects--Geographic Terms: Africa--Discovery and exploration. Dewey Class. No.: 960 / HOO 1962