Não informado. (1968). Contemporary education. Indiana University, School of Education.
Lua i Stíl Chicago (17ú heag.)Não informado. Contemporary Education. Terre Haute, Ind: Indiana University, School of Education, 1968.
Lua MLA (8ú heag.)Não informado. Contemporary Education. Indiana University, School of Education, 1968.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.