United States. Defense Mapping Agency. Hydrographic/Topographic Center. (1985). Africa--west coast, Nigeria, Gulf of Guinea, Ikegu to Cape Formoso (11th ed., June 29, 1985 (correct through NM 26/85).). The Center.
Chicago Style (17th ed.) CitationUnited States. Defense Mapping Agency. Hydrographic/Topographic Center. Africa--west Coast, Nigeria, Gulf of Guinea, Ikegu to Cape Formoso. 11th ed., June 29, 1985 (correct through NM 26/85). Washington, D.C.: The Center, 1985.
MLA (9th ed.) CitationUnited States. Defense Mapping Agency. Hydrographic/Topographic Center. Africa--west Coast, Nigeria, Gulf of Guinea, Ikegu to Cape Formoso. 11th ed., June 29, 1985 (correct through NM 26/85). The Center, 1985.
Warning: These citations may not always be 100% accurate.