Woods, D. R. (1994). Problem-based learning: How to gain the most from PBL. Donald R. Woods.
Lua i Stíl Chicago (17ú heag.)Woods, Donald R. Problem-based Learning: How to Gain the Most from PBL. Waterdown, Ont.: Donald R. Woods, 1994.
Lua MLA (8ú heag.)Woods, Donald R. Problem-based Learning: How to Gain the Most from PBL. Donald R. Woods, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.