Tressler, J. C. (1935). English in action: Course one-[four.] (Rev. ed.). D.C. Heath and Co.
Lua i Stíl Chicago (17ú heag.)Tressler, Jacob C. English in Action: Course One-[four.]. Rev. ed. Boston: D.C. Heath and Co, 1935.
Lua MLA (8ú heag.)Tressler, Jacob C. English in Action: Course One-[four.]. Rev. ed. D.C. Heath and Co, 1935.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.