Crevel, R., & Rattray, D. (1986). Difficult Death.
Chicago-Zitierstil (17. Ausg.)Crevel, René, 与 David Rattray. Difficult Death. San Francisco, 1986.
MLA-Zitierstil (8. Ausg.)Crevel, René, 与 David Rattray. Difficult Death. 1986.
警告：这些引文格式不一定是100％准确.