The dual mandate in British tropical Africa 2026-02-16T08:47:22+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Lugard, Frederick John Dealtry, Baron, 1858-1945 (Archon Books, 1965)