Political national boundaries as they were in 1990., Source: Hammond World Map. (1992). Hammond Incorporated.
Creator
U-Spatial (University of Minnesota)
Temporal Coverage
1990
Date Issued
2016-10-13
Rights
Data may be freely downloaded for research, study, or teaching, but must be cited appropriately. Re-release of the data, or incorporation of the data into a commercial product, is allowed only with explicit permission. Contact U-Spatial at uspatial@umn.edu or visit our website at www.uspatial.umn.edu for more information.