TY  - RPRT
TI  - The North America tapestry of time and terrain
AU  - Kate E. Barton
AU  - David G. Howell
AU  - Jose F. Vigil
PY  - 2003
DO  - 10.3133/i2781
UR  - https://pubs.usgs.gov/publication/i2781
ID  - i2781
ER  -