Cita APA (7th ed.)

Hamel, J., Dufour, S., & Fortin, D. (1993). Case study methods. Sage Publications.

Cita Chicago (17th ed.)

Hamel, Jacques, St�ephane Dufour, i Dominic Fortin. Case Study Methods. Newbury Park ; New Delhi: Sage Publications, 1993.

Cita MLA (8th ed.)

Hamel, Jacques, et al. Case Study Methods. Sage Publications, 1993.