TY  - RPRT
TI  - The modernization program of the US Geological Survey's National Mapping Division
AU  - Kirk E. Anderson
AU  - G.M. Callahan
PY  - 2013
DO  - 10.1559/152304090783814168
UR  - https://pubs.usgs.gov/publication/70015755
ID  - 70015755
ER  -