Cita APA (7th ed.)

Savin-Baden, M., & Wilkie, K. (2004). Challenging research in problem-based learning. Society for Research into Higher Education & Open University Press.

Cita Chicago (17th ed.)

Savin-Baden, Maggi, i Kay Wilkie. Challenging Research in Problem-based Learning. Maidenhead: Society for Research into Higher Education & Open University Press, 2004.

Cita MLA (9th ed.)

Savin-Baden, Maggi, i Kay Wilkie. Challenging Research in Problem-based Learning. Society for Research into Higher Education & Open University Press, 2004.