Freedom in modern theology - Osborn, Robert T. (Philadelphia: Westminster Press, 1967)
Introduction.--Rudolf Bultmann: Freedom as existence.--Paul Tillich: Freedom to be.--Karl Barth: Freedom in Christ.--Nicolas Berdyaev: Freedom to create.--A theology of freedom.
Bibliographical footnotes.
Keywords: Liberty -- Religious aspects -- Christianity -- History of doctrines; Theology, Doctrinal -- History -- 20th century