(1958). Curriculum Divisions.
Lua i Stíl Chicago (17ú heag.)Curriculum Divisions. 1958.
Lua MLA (8ú heag.)Curriculum Divisions. 1958.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
Lua APA (7ú heag.)