United States. National Imagery and Mapping Agency. (1999). Azores (Portugal), Scale 1: 500,000, TPC G-24B G, April 25, 1975. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. National Imagery and Mapping Agency. Azores (Portugal), Scale 1: 500,000, TPC G-24B G, April 25, 1975. [Place of publication not identified]: [publisher not identified], 1999.
MLA (9th ed.) CitationUnited States. National Imagery and Mapping Agency. Azores (Portugal), Scale 1: 500,000, TPC G-24B G, April 25, 1975. [publisher not identified], 1999.
Warning: These citations may not always be 100% accurate.