APA (7e ed.) Bronvermelding

National Academy of Engineering & ebrary, Inc. (2011). Memorial tributes. National Academies Press.

Chicago (17e ed.) Bronvermelding

National Academy of Engineering en Inc ebrary. Memorial Tributes. Washington: National Academies Press, 2011.

MLA (9e ed.) Bronvermelding

National Academy of Engineering en Inc ebrary. Memorial Tributes. National Academies Press, 2011.