Archibald, R. B. Why does college cost so much? Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Archibald, Robert B. Why Does College Cost so Much? Oxford University Press.
Lua MLA (8ú heag.)Archibald, Robert B. Why Does College Cost so Much? Oxford University Press.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.