Não informado. (1977). STUDIES IN SECOND LANGUAGE ACQUISITION. Indiana University.
Lua i Stíl Chicago (17ú heag.)Não informado. STUDIES IN SECOND LANGUAGE ACQUISITION. Bloomington, Ind: Indiana University, 1977.
Lua MLA (8ú heag.)Não informado. STUDIES IN SECOND LANGUAGE ACQUISITION. Indiana University, 1977.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.