http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
35 pages, 3 leaves of plates, l folded map : illustrations ; 13 cm.
by E. W. Knobel and R. O. Lewis and C. E. Dornberger ; Bureau of Chemistry and Soils in cooperation with Kansas Agricultural Experiment Station.
At head of title; United States Department of Agriculture.