Soil survey of Worth County, Iowa
By: by D.S. Gray and A.L. Gray
Series: Advance sheets--field operations of the Bureau of Soils -- 1922
Publisher: G.P.O.
Published: 1925
Place of publication: Washington, D.C
Language: eng
Number of pages: 306
Subjects: Soils; Soil surveys; Sols
Notes: United States Dept. of Agriculture, Bureau of Soils, in cooperation with the Iowa Agricultural Experiment Station.

Advance sheets -- Field operations of the Bureau of Soils, 1922.