Kellaghan, T. (1967). The organisation of classes in the primary school.
Lua i Stíl Chicago (17ú heag.)Kellaghan, Thomas. The Organisation of Classes in the Primary School. 1967.
Lua MLA (9ú heag.)Kellaghan, Thomas. The Organisation of Classes in the Primary School. 1967.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
