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1. Illustrated Guide to Soil Taxonomy

   out of 5 stars 

   06 May 2019

   Excerpts from the Illustrated Guide to Soil Taxonomy, ver. 2.

2. Fragipan description

   out of 5 stars 

   12 Mar 2018 | Contributor(s):: Darrell G. Schulze

   Description of the fragipan horizon from the Illustrated Guide to Soil Taxonomy, version 2.0.

3. Isee Image Test

   out of 5 stars 

   02 Jan 2016 | Contributor(s):: Darrell G. Schulze