TY  - BOOK
AU  - Leverett,Frank
AU  - Sardeson,Frederick William
AU  - Purssell,Ulysses G.
ED  - University of Minnesota.
ED  - Geological Survey (U.S.)
TI  - Surface formations and agricultural conditions of northeastern Minnesota,
T2  - Minnesota Geological Survey. Bulletin
AV  - QE127 .A22 no. 13
PY  - 1917///
CY  - Minneapolis
PB  - The University of Minnesota
KW  - Geology
KW  - Minnesota
KW  - Agriculture
KW  - Soils
KW  - Climate
N1  - At head of title: The University of Minnesota; "In cooperation with the United States Geological survey."
ER  -