TY  - RPRT
TI  - Reports and maps of the Geological Survey released only in the open files, 1951
AU  - Donald Richard Wiesnet
AU  - Lois E. Randall
AU  - Benjamin E. Jones
PY  - 1953
DO  - 10.3133/cir227
UR  - https://pubs.usgs.gov/publication/cir227
ID  - cir227
ER  -