@inbook{NBERc4285,
 Crossref = "NBERshou72-1",
 title = "Quantitative Research In Taxation And Government Expenditure",
 author = "Carl S. Shoup",
 BookTitle = "Economic Research: Retrospect and Prospect Vol 4: Public Expenditures and Taxation",
 Publisher = "NBER",
 pages = "1-60",
 year = "1972",
 URL = "http://www.nber.org/chapters/c4285",
}
@book{NBERshou72-1,
 title = "Economic Research: Retrospect and Prospect Vol 4: Public Expenditures and Taxation",
 author = "Carl S. Shoup",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "NBER",
 year = "1972",
 URL = "http://www.nber.org/books/shou72-1",
}