Kellaghan, T., & Gorman, L. (1968). A survey of teaching aids in Irish primary schools.
Lua i Stíl Chicago (17ú heag.)Kellaghan, Thomas, agus Liam Gorman. A Survey of Teaching Aids in Irish Primary Schools. 1968.
Lua MLA (9ú heag.)Kellaghan, Thomas, agus Liam Gorman. A Survey of Teaching Aids in Irish Primary Schools. 1968.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
