http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Technological change and the future of the railways
selected papers from a three-day conference conducted by the Transportation Center at Northwestern University, Evanston, Illinois
Conference on Technological Change and the Future of the Railways (1961 : Evanston, Ill.)
Transportation Center at Northwestern University.
Editors: Robert S. Nelson [and] Edward M. Johnson.