Hamel, J., Dufour, S., & Fortin, D. (1993). Case study methods. Sage.
芝加哥风格引文Hamel, Jacques, Stephane Dufour, 与 Dominic Fortin. Case Study Methods. Newbury Park: Sage, 1993.
MLA引文Hamel, Jacques, et al. Case Study Methods. Sage, 1993.
警告：这些引文格式不一定是100％准确.