APA (7th ed.) Citation

Hamel, J., Dufour, S., & Fortin, D. (c 1993). Case study methods. Qualitative research methods.

Chicago Style (17th ed.) Citation

Hamel, Jacques, Stéphane Dufour, and Dominic Fortin. "Case Study Methods." Qualitative Research Methods c 1993.

MLA (9th ed.) Citation

Hamel, Jacques, et al. "Case Study Methods." Qualitative Research Methods, c 1993.