APA引文

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

芝加哥风格引文

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

MLA引文

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

警告：这些引文格式不一定是100％准确.