TY  - RPRT
TI  - Status of correlation of Quaternary stratigraphic units in the western conterminous United States
AU  - P. W. Birkeland
AU  - D. R. Crandell
AU  - G.M. Richmond
PY  - 2017
DO  - 10.1016/0033-5894(71)90042-1
UR  - https://pubs.usgs.gov/publication/70010400
ID  - 70010400
ER  -