SMITH, C. B. (1980). Outlets Carl B. Smith And Ronald Wardhugh. Macmillan.
Lua i Stíl Chicago (17ú heag.)SMITH, Carl B. Outlets Carl B. Smith And Ronald Wardhugh. Macmillan, 1980.
Lua MLA (8ú heag.)SMITH, Carl B. Outlets Carl B. Smith And Ronald Wardhugh. Macmillan, 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.