APA
Tillich P., . (1948). The shaking of the foundations. New York: Charles Scribner's sons.
Chicago
Tillich Paul, . 1948. The shaking of the foundations. New York: Charles Scribner's sons.
Harvard
Tillich P., . (1948). The shaking of the foundations. New York: Charles Scribner's sons.
MLA
Tillich Paul, . The shaking of the foundations. New York: Charles Scribner's sons. 1948.
