Cita APA (7th ed.)
Duncan, E. H., & Walker, D. F. (1976). Sören Kierkegaard. Word Books.
Cita Chicago (17th ed.)
Duncan, Elmer H., i Danny Floyd Walker. Sören Kierkegaard. Waco, Tex.: Word Books, 1976.
Cita MLA (9th ed.)
Duncan, Elmer H., i Danny Floyd Walker. Sören Kierkegaard. Word Books, 1976.
Atenció: Aquestes cites poden no estar 100% correctes.