APA

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

Chicago

Savin-Baden Maggi, Wilkie Kay and Society for Research into Higher Education. 2004. Challenging research in problem-based learning. New York: Society for Research into Higher Education & Open University Press.

Harvard

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

MLA

Savin-Baden Maggi, Wilkie Kay and Society for Research into Higher Education. Challenging research in problem-based learning. New York: Society for Research into Higher Education & Open University Press. 2004.