Lua APA (7ú heag.)
National Academy of Engineering & ebrary, Inc. (1993). Memorial tributes. National Academy of Engineering.
Lua i Stíl Chicago (17ú heag.)
National Academy of Engineering agus Inc ebrary. Memorial Tributes. Washington, D.C.: National Academy of Engineering, 1993.
Lua MLA (9ú heag.)
National Academy of Engineering agus Inc ebrary. Memorial Tributes. National Academy of Engineering, 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.