Martin, B., & Tillich, P. (1963). The existentialist Theology of Paul Tillich. Bookman.
Chicago Style (17th ed.) CitationMartin, Bernard, and Paul Tillich. The Existentialist Theology of Paul Tillich. New York: Bookman, 1963.
MLA (8th ed.) CitationMartin, Bernard, and Paul Tillich. The Existentialist Theology of Paul Tillich. Bookman, 1963.
Warning: These citations may not always be 100% accurate.