APA (7th ed.) Citation

Tillich, P. (1963). The Eternal now. Charles Scribner's Sons.

Chicago Style (17th ed.) Citation

Tillich, Paul. The Eternal Now. New York: Charles Scribner's Sons, 1963.

MLA (9th ed.) Citation

Tillich, Paul. The Eternal Now. Charles Scribner's Sons, 1963.

Warning: These citations may not always be 100% accurate.