(1978). Writing for results: Principles and practice / Dugan Laird.
Lua i Stíl Chicago (17ú heag.)Writing for Results: Principles and Practice / Dugan Laird. 1978.
Lua MLA (9ú heag.)Writing for Results: Principles and Practice / Dugan Laird. 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.