General Resources
- A Handbook of Denominations in the United States, F. Mead, rev. by Samuel Hill (Abingdon)
Catholicism
- Harvest Waiting: Reaching Out to the Mexicans, Esaul & Melissa Salomon (CPH).
- Catholic, Lutheran, Protestant: A Doctrinal Comparison of Three Christian Confessions, Gregory L. Jackson (NPH)
- The Roman Catholics Patrick Carey (Westport, CT: Greenwood, 1993).
- The American Catholic People: Their Beliefs, Practices and Values, George Gallup and Jim Castelli (Garden City, NY: Doubleday, 1987).
- Roman Catholicism in America Chester Gillis (New York: Columbia, 1999).
Reformed
- Catholic, Lutheran, Protestant: A Doctrinal Comparison of Three Christian Confessions, Gregory L. Jackson (NPH)
- Introduction to the Reformed Tradition, John Leith (Westminster/John Knox)
- The Basic Ideas of Calvinism, Henry Meeter (Grand Rapids: Baker, 1990).
- Reformed Theology in America: A History of Modern Development, David Wells (Grand Rapids: Eerdmans, 1985).
- Marburg Revisited, Paul Empie and James McCord, (Augsburg), 1966.
- Dictionary of the Presbyterian and Reformed Tradition in America, D. Hart and M. Noll eds. (InterVarsity Press)
Armenians
- Catholic, Lutheran, Protestant: A Doctrinal Comparison of Three Christian Confessions, Gregory L. Jackson (NPH)
- The Baptist Heritage, H. L. McBeth (Broadman and Holman)
Pentecostals
- The Pentecostals and Charismatics: A Confessional Lutheran Evaluation, Arthur J. Clement (NPH)
- Theological Roots of Pentecostalism, Donald Dayton (Hendrickson Publishers),1987.
- Pentecostalism, Walter Hollenweger (Hendrickson Publishers), 1997
- Dictionary of Pentecostal and Charismatic Movements, S. Burgess and G. McGee eds. (Zondervan)
Dispensationalism
- Dispensationalism: Rightly Dividing the People of God?, K. Mathison (Presbyterian and Reformed)
- Dispensationalism, Charles Ryrie (Moody)
- Understanding Dispensationalists, Vern Poythress (Grand Rapids: Academie, 1987).
Eastern Orthodox
- Eastern Orthodox Christianity, Daniel Clendenin (Baker/Revell) 1994
- Eastern Orthodox Theology, Daniel Clendenin (Baker/Revell), 1995
- The Orthodox Church (Revised), John Meyendorff (revised by Nicholas Losky), (SVS Press)
- Orthodox Theology: An Introduction, Vladimir Lossky (Crestwood, N.Y.: St. Vladimir’s Seminary, 1978).
Liberal Lutherans
- What’s Going on Among the Lutherans? A Comparison of Beliefs, Leppien Patsy A and Smith J Kincaid (NPH).
- WELS and Other Lutherans: Lutheran Church Bodies in the USA, J. Brug, E. Fredrich, A. Schuetze (Milwaukee: Northwestern, 1995).
- www.elca.org
Others
- How to Respond to the New Christian Religions, Philip H. Lochhaas (CPH)
- Harvest Waiting: Reaching Out to the Deaf, Rhoda Rynearson (CPH)
- Harvest Waiting: Reaching Out to the African Americans, Nikki Rochester (CPH).
- Harvest Waiting: Reaching Out to the Vietnamese, Minh Chau Ngoc Vo (CPH).