TY  - RPRT
TI  - Preliminary report on the geology of the Zahl No. 4 Quadrangle, North Dakota
AU  - Garland B. Gott
PY  - 1947
DO  - 10.3133/ofr487
UR  - https://pubs.usgs.gov/publication/ofr487
ID  - ofr487
ER  -