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A. L. Gray
Born 1898-01-01
Identifiers
Open Library
OL5404210A
Top Subjects
Soils (1)
Soil surveys (1)
Sols (1)
Iowa (1)
Iowa (États-Unis) (1)
Worth County (1)
États-Unis (1)
Books by A. L. Gray
Total count: 2
Soil survey of Worth County, Iowa
G.P.O.
1925-01-01
Soil survey of Houston County, Minnesota
U.S. Govt. Print. Off.
1934-01-01
