A. M. O'neal

Soil Permeability Determinations for Use in Soil and Water Conservation

R. Uhland, A. M. O'neal, 2017 .

The color of soils in relation to organic matter content

P. E. Brown, A. M. O'neal, 2022 .

A Key for Evaluating Soil Permeability by Means of Certain Field Clues

A. M. O'neal, 1952 .

Soil Survey of Iowa, Report No. 69—Pocahantas County Soils

H. Meldrum, P. E. Brown, A. M. O'neal, 1933 .