South-western Publishing Company & Agnew, P. L. (1955). Typewriting office practice (2nd ed.). South-Western Pub. Co..
Lua i Stíl Chicago (17ú heag.)South-western Publishing Company agus Peter Lawrence Agnew. Typewriting Office Practice. 2nd ed. Cincinnati, Ohio: South-Western Pub. Co., 1955.
Lua MLA (8ú heag.)South-western Publishing Company agus Peter Lawrence Agnew. Typewriting Office Practice. 2nd ed. South-Western Pub. Co., 1955.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.