John Stott and David L. Edwards, Evangelical Essentials: A Liberal-Evangelical Dialogue (InterVarsity, 1988)
Philip E. Hughes, The True Image: The Origin and Destiny of Man in Christ (Eerdmans, 1989)
John W. Wenham, "The Case for Conditional Immortality" in Universalism and the Doctrine of Hell (Baker 1992)
Edward Fudge, The Fire That Consumes: The Biblical Case for Conditional Immortality (Paternoster, 1994)
Advocates from church history: Justin Martyr and Theophilus of Antioch (proto-conditionalists), Arnobius, John Biddle, William Whiston, Henry Constable, and Edward White.
J. I. Packer in Evangelical Affirmations (Academie, 1990)
John H. Gerstner, Repent or Perish (Soli Deo Gloria, 1990)
Larry Dixon, The Other Side of the Good News: Confronting the Contemporary Challenges to Jesus' Teaching on Hell (Victor, 1992)
Kendall Harmon, "The Case against Conditionalism: A Response to Edward William Fudge" in Universalism and the Doctrine of Hell (Baker, 1992)
Robert A. Peterson, Hell on Trial: the Case for Eternal Punishment (Presbyterian & Reformed, 1995)
D. A. Carson, The Gagging of God: Christianity Confronts Pluralism (Zondervan, 1996)
Advocates from church history: Tertullian, Lactantius, Basil of Caesarea, Jerome, Cyril of Jerusalem, Chrysostom, Augustine, Aquinas, Luther, Calvin, Edwards, Whitefield and Wesley.
Be sure to read the related stories to this sidebar, "Undying Worm, Unquenchable Fire | Will unbelievers endure eternal torment or will they be annihilated? An assessment of the Evangelical Alliance's The Nature of Hell" and "Coming to Terms | Key Phrases in the Hell Debate."
To read up on classic opinions of hell, access your favorite theologians' writings at Christian Classics ...