TY  - RPRT
TI  - Geologic map of Morrill County, Nebraska
AU  - J. B. Swinehart
AU  - R. F. Diffendal
AU  - C.C. Swisher
PY  - 1995
DO  - 10.3133/i2496
UR  - https://pubs.usgs.gov/publication/i2496
ID  - i2496
ER  -