Morris, A. C., & Spivey, H. E. (1931). Essentials of correctness in the use of English. Prentice-Hall, Inc..
Lua i Stíl Chicago (17ú heag.)Morris, Alton Chester, agus Herman E. Spivey. Essentials of Correctness in the Use of English. New York: Prentice-Hall, Inc., 1931.
Lua MLA (8ú heag.)Morris, Alton Chester, agus Herman E. Spivey. Essentials of Correctness in the Use of English. Prentice-Hall, Inc., 1931.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.