APA (7th ed.) Citation

Knowlton, D. S., & Sharp, D. C. (2003). Problem-based learning in the information age. Jossey-Bass.

Chicago Style (17th ed.) Citation

Knowlton, Dave S., and David C. Sharp. Problem-based Learning in the Information Age. San Francisco: Jossey-Bass, 2003.

MLA (9th ed.) Citation

Knowlton, Dave S., and David C. Sharp. Problem-based Learning in the Information Age. Jossey-Bass, 2003.