APA (7th ed.) Citation

Tillich, P. (1984). Systematic theology Systematic theology.

Chicago Style (17th ed.) Citation

Tillich, Paul. "Systematic Theology." Systematic Theology 1984.

MLA (8th ed.) Citation

Tillich, Paul. "Systematic Theology." Systematic Theology, 1984.

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