TY  - RPRT
TI  - Boundaries, areas, geographic centers, and altitudes of the United States and the several states, with a brief record of important changes in their territory and government
AU  - Edward M. Douglas
PY  - 1930
DO  - 10.3133/b817
UR  - https://pubs.usgs.gov/publication/b817
ID  - b817
ER  -