APA (7th ed.) Citation

Courage, C., Baxter, K., & Caine, K. (2015). Understanding your users: A practical guide to user research methods (Second edition.). Elsevier/Morgan Kaufmann.

Chicago Style (17th ed.) Citation

Courage, Catherine, Kathy Baxter, and Kelly Caine. Understanding Your Users: A Practical Guide to User Research Methods. Second edition. Amsterdam: Elsevier/Morgan Kaufmann, 2015.

MLA (9th ed.) Citation

Courage, Catherine, et al. Understanding Your Users: A Practical Guide to User Research Methods. Second edition. Elsevier/Morgan Kaufmann, 2015.