Reynolds, J. (2006). Understanding existentialism. Acumen.
芝加哥风格引文Reynolds, Jack. Understanding Existentialism. Chesham [U.K.]: Acumen, 2006.
MLA引文Reynolds, Jack. Understanding Existentialism. Acumen, 2006.
警告：这些引文格式不一定是100％准确.
APA引文