APA (7th ed.) Citation

Barrows, H. S., & Tamblyn, R. M. (1980). Problem-based learning: An approach to medical education. Springer.

Chicago Style (17th ed.) Citation

Barrows, Howard S., and Robyn M. Tamblyn. Problem-based Learning: An Approach to Medical Education. New York: Springer, 1980.

MLA (9th ed.) Citation

Barrows, Howard S., and Robyn M. Tamblyn. Problem-based Learning: An Approach to Medical Education. Springer, 1980.