TY  - RPRT
TI  - Analyses of A-horizon soil and outcrop samples from the Vermillion District, northeastern Minnesota
AU  - D. J. Grimes
AU  - David F. Siems
AU  - H. V. Alminas
PY  - 1981
DO  - 10.3133/ofr81999
UR  - https://pubs.usgs.gov/publication/ofr81999
ID  - ofr81999
ER  -