National Academy of Engineering & ebrary, Inc. (2011). Memorial tributes. National Academies Press.
Chicago-čujuhus (17. p.)National Academy of Engineering juo Inc ebrary. Memorial Tributes. Washington: National Academies Press, 2011.
MLA-čujuhus (9. p.)National Academy of Engineering juo Inc ebrary. Memorial Tributes. National Academies Press, 2011.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.