| Soil survey of Crawford County, Kansas |
Layton, M.H.; Kerr, J.A.; Knobel, E.W.; Higbee, H.W.; and O'Hara, R.W. |
U.S. Department of Agriculture, Bureau of Chemistry and Soils series 1928, no. 3, 20 pages |
1931 |
N/A
|
| Soil survey of Doniphan County, Kansas |
Knobel, E.W.; Davis, R.H.; and Higbee, H.W. |
U.S. Department of Agriculture, Bureau of Chemistry and Soils series 1927, no. 25, 34 pages |
1931 |
N/A
|
| Soil survey of Johnson County, Kansas |
Knobel, E.W.; and Davis, R.H. |
U.S. Department of Agriculture, Bureau of Chemistry and Soils series 1928, no. 17, 32 pages |
1932 |
N/A
|
| Soil survey of Labette County, Kansas |
Knobel, E.W.; Von Trebra, R.L.; and Higbee, H.W. |
U.S. Department of Agriculture, Bureau of Chemistry and Soils series 1926, no. 30, 23 pages |
1931 |
N/A
|
| Soil survey of Marion County, Kansas |
Knobel, E.W.; and Lewis, R.O. |
U.S. Department of Agriculture, Bureau of Chemistry and Soils series 1930, no. 35, 35 pages |
1935 |
N/A
|