Soil survey, Indiana County, Pennsylvania - Weaver, Jay B.; Ruffner, Joseph D., 1916-; United States. Soil Conservation Service (Washington] U.S. Dept. of Agriculture, Soil Conservation Service; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.], 1968)
Cover title.
Bibliography: p. 108.
Keywords: Soils -- Pennsylvania -- Indiana County -- Maps; Soil surveys -- Pennsylvania -- Indiana County