Title: Soil survey, Safford area, Arizona
Authors: Gelderman, Frederick W.; University of Arizona.; United States.
Publisher: U.S. Soil Conservation Service; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.],
Year: 1970
Subjects: Soils Arizona Graham County Maps.; Soil surveys Arizona Graham County.; Soil surveys; Soils; Sols États-Unis Arizona (États-Unis); Arizona Graham County