Indexed in lower margin of each map. Available also as a digital image through the Harvard University Web site. Electronic reproduction. Cambridge, Mass. : Harvard Geospatial Library, 2008 Georeferenced image for use in a GIS.
Indexed in lower margin of each map. Available also as a digital image through the Harvard University Web site. Electronic reproduction. Cambridge, Mass. : Harvard Geospatial Library, 2008 Georeferenced image for use in a GIS.