Cita APA (7th ed.)
National Academy of Engineering & ebrary, Inc. (2007). Memorial tributes. National Academies Press.
Cita Chicago (17th ed.)
National Academy of Engineering i Inc ebrary. Memorial Tributes. Washington, D.C.: National Academies Press, 2007.
Cita MLA (9th ed.)
National Academy of Engineering i Inc ebrary. Memorial Tributes. National Academies Press, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.