Recommended Book for Comparing Differing Church Governing Structures
Toon, Peter, et al. Who Runs the Church: Four Views on Church Government. Steven W. Cowan, General Editor. Grand Rapids: Zondervan, 2004.
Succinct and helpful articles on Episcopalianism, Presbyterianism, Single-elder congregationalism, and Plural Elder Congregationalism by "patriarchs" from each polity.