Browne, M. N., & Keeley, S. M. (2004). Asking the right questions: A guide to critical thinking (7th ed.). Pearson Prentice Hall.
Cita Chicago (17th ed.)Browne, M. Neil, i Stuart M. Keeley. Asking the Right Questions: A Guide to Critical Thinking. 7th ed. Upper Saddle River, N.J: Pearson Prentice Hall, 2004.
Cita MLA (9th ed.)Browne, M. Neil, i Stuart M. Keeley. Asking the Right Questions: A Guide to Critical Thinking. 7th ed. Pearson Prentice Hall, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.