@inbook{NBERc7063,
 Crossref = "NBERuniv65-2",
 title = "The Effects of Entry Control in Surface Transport",
 author = "James C. Nelson",
 BookTitle = "Transportation Economics",
 Publisher = "UMI",
 pages = "381-422",
 year = "1965",
 URL = "http://www.nber.org/chapters/c7063",
}
@book{NBERuniv65-2,
 title = "Transportation Economics",
 author = "Rendigs Fels, Chairman, Chairman, Universities-National Bureau Committee for Economic Research",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "UMI",
 year = "1965",
 URL = "http://www.nber.org/books/univ65-2",
}