Soil Survey of Ottawa County, Ohio, by A. H. Paschall,... J. G. Steele and G. W. Conrey,... and S. W. Phillips,... J. G. Steele Published: 1933 Total Pages: 38 Get eBook
Soil Survey, Ottawa County, Oklahoma Claude Thurman Newland Published: 1964 Total Pages: 132 Get eBook
Soil Survey of Ottawa County, Oklahoma United States. Soil Conservation Service Published: 1960 Total Pages: 75 Get eBook