Soil Survey of Greene and Lawrence Counties, Missouri Harold E. Hughes Published: 1982 Total Pages: 288 Get eBook
Soil Survey of Polk County, Missouri Henry Herman Krusekopf Published: 1930 Total Pages: 44 Get eBook
List of Publications of the Bureau of Soils United States. Bureau of Soils Published: Total Pages: 30 Get eBook
Experiment Station Record United States. Office of Experiment Stations Published: 1916 Total Pages: 1052 Get eBook