APA-Zitierstil (7. Ausg.)

Barell, J. (2007). Problem-based learning: An inquiry approach (2. ed.). Corwin Press.

Chicago-Zitierstil (17. Ausg.)

Barell, John. Problem-based Learning: An Inquiry Approach. 2. ed. Thousand Oaks, CA: Corwin Press, 2007.

MLA-Zitierstil (9. Ausg.)

Barell, John. Problem-based Learning: An Inquiry Approach. 2. ed. Corwin Press, 2007.