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1977
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1. BEA Economic Areas, 1977
1977. Digital Social Science Center (DSSC), Columbia University Libraries and United States. Bureau of Economic Analysis. This is a scanned version of the 1977 paper map entitled: BEA Economic Areas. Both sides of the map were scanned at 300 dots per inch and are in t... United States. Bureau of Economic Analysis.
2. Purdue Campus: West Lafayette, Indiana, 1977
1977. The Purdue historical campus map collection was scanned and georeferenced by Purdue University Libraries. The physical maps were collected as Purdu...
3. San Salvador, 1977 (Scanned Map)
1977. United States. Defense Mapping Agency and East View Cartographic, Inc. San Salvador is a scanned, georeferenced map of the city of San Salvador, EL Salvador at a scale of 1:15,000. This map is in two sheets. Defense Mapping Agency Hydrographic/Topographic Center,.