TY  - RPRT
TI  - Preliminary map showing the estimated potential yields of the Little Muddy aquifer, Williams County, North Dakota
AU  - Earl A. Ackroyd
PY  - 1967
DO  - 10.3133/ofr671
UR  - https://pubs.usgs.gov/publication/ofr671
ID  - ofr671
ER  -