Drummond, A. (1988). Typing first course (5th ed.). McGraw-Hill Book Company.
Lua i Stíl Chicago (17ú heag.)Drummond, Archie. Typing First Course. 5th ed. London: McGraw-Hill Book Company, 1988.
Lua MLA (9ú heag.)Drummond, Archie. Typing First Course. 5th ed. McGraw-Hill Book Company, 1988.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.