APA-čujuhus (7. p.)
ebrary, Inc. (2004). The engineer of 2020: Visions of engineering in the new century. National Academies Press.
Chicago-čujuhus (17. p.)
ebrary, Inc. The Engineer of 2020: Visions of Engineering in the New Century. Washington, D.C.: National Academies Press, 2004.
MLA-čujuhus (9. p.)
ebrary, Inc. The Engineer of 2020: Visions of Engineering in the New Century. National Academies Press, 2004.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.