TY  - RPRT
TI  - Colorado Plateau
AU  - William L. Graf
AU  - Richard Hereford
AU  - Julie Laity
AU  - Richard A. Young
PY  - 1987
DO  - 10.1130/dnag-cent-v2.259
UR  - https://pubs.usgs.gov/publication/70210060
ID  - 70210060
ER  -