The literature most critical for the performance of the various test were the Ecology Lab Protocols (Stein-Carter 1991).  These various protocols assisted with the use of tools, the execution of the tests, and the proper collection of the data.  The Nature and Properties of Soils (Nyle and Ray 2001) was used to analyze the data collected from the soil samples from the South Maple Creek area.  It says that average conditions for most plants to grow is between 5 and 7.  Because Amur Honeysuckle is such a large problem in the area Weeds of the Northeast (Richard, Joseph, Joseph 1999) was an insightful book about the spread and prevention of the weed.