@inbook{NBERc6456,
 Crossref = "NBERlent55-1",
 title = "Government Holdings Of Tax-Exempt Securities",
 author = "George E. Lent",
 BookTitle = "The Ownership of Tax-Exempt Securities, 1913-1953",
 Publisher = "NBER",
 pages = "43-55",
 year = "1955",
 URL = "http://www.nber.org/chapters/c6456",
}
@book{NBERlent55-1,
 title = "The Ownership of Tax-Exempt Securities, 1913-1953",
 author = "George E. Lent",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "NBER",
 year = "1955",
 URL = "http://www.nber.org/books/lent55-1",
}