Malouf, R., & Areosa Sastre, A. (2003). Vitamin B12 for cognition. Cochrane Collaboration.
Lua i Stíl Chicago (17ú heag.)Malouf, R., agus A. Areosa Sastre. Vitamin B12 for Cognition. Cochrane Collaboration, 2003.
Lua MLA (9ú heag.)Malouf, R., agus A. Areosa Sastre. Vitamin B12 for Cognition. Cochrane Collaboration, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.