APA引文

Kloepfer, J., & Wolfhard, S. (2011). Sludgment day. Harper.

芝加哥风格引文

Kloepfer, John, 与 Steve Wolfhard. Sludgment Day. New York: Harper, 2011.

MLA引文

Kloepfer, John, 与 Steve Wolfhard. Sludgment Day. Harper, 2011.

警告：这些引文格式不一定是100％准确.