APA
Courage C., Baxter K., . (2005). Understanding your users : a practical guide to user requirements methods, tools, and techniques. San Francisco: Morgan Kaufmann.
Chicago
Courage Catherine, Baxter Kathy, . 2005. Understanding your users : a practical guide to user requirements methods, tools, and techniques. San Francisco: Morgan Kaufmann.
Harvard
Courage C., Baxter K., . (2005). Understanding your users : a practical guide to user requirements methods, tools, and techniques. San Francisco: Morgan Kaufmann.
MLA
Courage Catherine, Baxter Kathy, . Understanding your users : a practical guide to user requirements methods, tools, and techniques. San Francisco: Morgan Kaufmann. 2005.