APA-referens (7:e uppl.)
Duch, B. J., Groh, S. E., & Allen, D. E. (2001). The power of problem-based learning: A practical "how to" for teaching undergraduate courses in any discipline (First edition.). Stylus.
Chicago-referens (17:e uppl.)
Duch, Barbara J., Susan E. Groh, och Deborah E. Allen. The Power of Problem-based Learning: A Practical "How to" for Teaching Undergraduate Courses in Any Discipline. First edition. Sterling, Virginia: Stylus, 2001.
MLA-referens (9:e uppl.)
Duch, Barbara J., et al. The Power of Problem-based Learning: A Practical "How to" for Teaching Undergraduate Courses in Any Discipline. First edition. Stylus, 2001.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.