1915. Soils surveyed by W.J. Latimer, in charge ...; Soil types designated by colors. 86 x 100 centimeters Scale not given. General Map Collection. Bureau of Soils (Washington).
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1915. Soils survey by M.W. Beck, in charge, and A.L. Goodman.; Soil types designated by colors. 84 x 84 centimeters Scale not given. General Map Collection. Bureau of Soils (Washington).