Pfeiffer W. S. William S. (2000). Technical Writing: A Practical Approach (4th ed.). New Jersey, Prentice Hall, 2000.
Lua i Stíl Chicago (17ú heag.)Pfeiffer W. S. William S. Technical Writing: A Practical Approach. 4th ed. New Jersey, Prentice Hall, 2000, 2000.
Lua MLA (9ú heag.)Pfeiffer W. S. William S. Technical Writing: A Practical Approach. 4th ed. New Jersey, Prentice Hall, 2000, 2000.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.