APA (7th ed.) Zitazioa
Barrows, H. S., & Tamblyn, R. M. (1980). Problem-based learning: An approach to medical education. Springer Pub. Co..
Chicago Style (17th ed.) Zitazioa
Barrows, Howard S., eta Robyn M. Tamblyn. Problem-based Learning: An Approach to Medical Education. New York: Springer Pub. Co., 1980.
MLA (9th ed.) Zitazioa
Barrows, Howard S., eta Robyn M. Tamblyn. Problem-based Learning: An Approach to Medical Education. Springer Pub. Co., 1980.
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