Butler, N. (1846). A practical grammar of the English language (Stereotype ed.). Morton & Griswold.
Lua i Stíl Chicago (17ú heag.)Butler, Noble. A Practical Grammar of the English Language. Stereotype ed. Louisville: Morton & Griswold, 1846.
Lua MLA (8ú heag.)Butler, Noble. A Practical Grammar of the English Language. Stereotype ed. Morton & Griswold, 1846.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.