APA
Tillich P., Braaten C. E. & Tillich P. (1968). A history of Christian thought, from its Judaic and Hellenistic origins to existentialism. [New York]: Simon and Schuster.
Chicago
Tillich Paul, Braaten Carl E and Tillich Paul. 1968. A history of Christian thought, from its Judaic and Hellenistic origins to existentialism. [New York]: Simon and Schuster.
Harvard
Tillich P., Braaten C. E. and Tillich P. (1968). A history of Christian thought, from its Judaic and Hellenistic origins to existentialism. [New York]: Simon and Schuster.
MLA
Tillich Paul, Braaten Carl E and Tillich Paul. A history of Christian thought, from its Judaic and Hellenistic origins to existentialism. [New York]: Simon and Schuster. 1968.