TY - RPRT TI - Preliminary geologic map of the Lansford quadrangle, North Dakota AU - Richard W. Lemke AU - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey AU - Fred S. Jensen PY - 1947 DO - 10.3133/ofr479 UR - https://pubs.usgs.gov/publication/ofr479 ID - ofr479 ER -