Wilbur, T. H. (1979). Prolegomena to a grammar of Basque. J. Benjamins.
Lua i Stíl Chicago (17ú heag.)Wilbur, Terence H. Prolegomena to a Grammar of Basque. Amsterdam: J. Benjamins, 1979.
Lua MLA (9ú heag.)Wilbur, Terence H. Prolegomena to a Grammar of Basque. J. Benjamins, 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.