TY  - RPRT
TI  - Color variations within glacial till, east-central North Dakota--A preliminary investigation
AU  - T. E. Kelly
AU  - Claud H. Baker
PY  - 1966
DO  - 10.1306/74d7140b-2b21-11d7-8648000102c1865d
UR  - https://pubs.usgs.gov/publication/70195943
ID  - 70195943
ER  -