Marckwardt, A. H. (1966). Linguistics and the Teaching of English. Indiana University Press.
Lua i Stíl Chicago (17ú heag.)Marckwardt, Albert H. Linguistics and the Teaching of English. Bloomington: Indiana University Press, 1966.
Lua MLA (9ú heag.)Marckwardt, Albert H. Linguistics and the Teaching of English. Indiana University Press, 1966.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.