Cita APA (7th ed.)
National Academy of Engineering & ebrary, Inc. (1989). Memorial tributes. The Academy.
Cita Chicago (17th ed.)
National Academy of Engineering i Inc ebrary. Memorial Tributes. Washington, D.C.: The Academy, 1989.
Cita MLA (9th ed.)
National Academy of Engineering i Inc ebrary. Memorial Tributes. The Academy, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.