International records / UK National Archives
NIGERIA 1:25,000 & 1:50,000 MID. WESTERN REGION, DELTA / ABA - OWERRI + appendix : diagrams, general material, sheet sizes, footnotes.
CCS/DOS/296/16 | The Charles Close Society Archives Catalogue.Ordnance Survey International.
No file is held for this record yet. The catalogue entry and the link to where it was published are kept.
