APA (7th ed.) Zitazioa
National Academy of Engineering & ebrary, Inc. (2008). Memorial tributes. National Academies Press.
Chicago Style (17th ed.) Zitazioa
National Academy of Engineering eta Inc ebrary. Memorial Tributes. Washington: National Academies Press, 2008.
MLA (9th ed.) Zitazioa
National Academy of Engineering eta Inc ebrary. Memorial Tributes. National Academies Press, 2008.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.