APA

Tillich P., . (1967). Perspectives on 19th and 20th century protestant theology. New York: Harper and Row.

Chicago

Tillich Paul, . 1967. Perspectives on 19th and 20th century protestant theology. New York: Harper and Row.

Harvard

Tillich P., . (1967). Perspectives on 19th and 20th century protestant theology. New York: Harper and Row.

MLA

Tillich Paul, . Perspectives on 19th and 20th century protestant theology. New York: Harper and Row. 1967.