References

Books supplied by Lamotte in the LaMotte, Combination Soil Outfit, (Model STH-14 Code 5010-01) Kit.

Palmer, Robert G. & Troen, Fredrick R. Introduction to Soil Science, Laboratory Manual. Iowa State Press. Iowa, USA. 1967.

Sposit, Garrison. The Chemistry of Soils. Oxford University Press. New York, USA. 1989.