ebrary, Inc. (2004). The engineer of 2020: Visions of engineering in the new century. National Academies Press.
Dyfyniad Arddull Chicagoebrary, Inc. The Engineer of 2020: Visions of Engineering in the New Century. Washington, D.C.: National Academies Press, 2004.
Dyfyniad MLAebrary, Inc. The Engineer of 2020: Visions of Engineering in the New Century. National Academies Press, 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.