University of Minnesota Ph.D. dissertation. 1918. Major: Soil Studies. 1 computer file (PDF); 132 pages.
Mohrow, Clarence Austin.
The Organic Matter of the Soil: A Study of the Nitrogen Distribution in Different Soil Types.
Retrieved from the University of Minnesota Digital Conservancy,
Content distributed via the University of Minnesota's Digital Conservancy may be subject to additional license and use restrictions applied by the depositor.