Não informado. (1975). Innovation. Bureau International d'Education, Service International d'Information sur las Innovations Educatives.
Lua i Stíl Chicago (17ú heag.)Não informado. Innovation. Geneve, Suíça: Bureau International d'Education, Service International d'Information sur las Innovations Educatives, 1975.
Lua MLA (8ú heag.)Não informado. Innovation. Bureau International d'Education, Service International d'Information sur las Innovations Educatives, 1975.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.