Não informado. (1955). Physical Education. Physical Education Association.
Lua i Stíl Chicago (17ú heag.)Não informado. Physical Education. Birmingham, Inglaterra: Physical Education Association, 1955.
Lua MLA (8ú heag.)Não informado. Physical Education. Physical Education Association, 1955.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.