Citation

Aerospace Center (U.S.). United States. National Imagery and Mapping Agency.. United States. Defense Mapping Agency.. Harvard University. Center for Geographic Analysis.. East View Cartographic, Inc.. (2009). Cape Verde, Mauritania, Senegal, Western Sahara, 1979, Operational Navigation Chart (ONC) J-1 (Raster Image). [GeoTIFF]. Harvard Map Collection, Harvard College Library. Retrieved from https://earthworks.stanford.edu/catalog/harvard-am-onc-j01l