@inbook{NBERc0759,
 Crossref = "NBERkahn64-1",
 title = "Foreword to "Business and Professional Income Under the Personal Income Tax"",
 author = "Solomon Fabricant",
 BookTitle = "Business and Professional Income Under the Personal Income Tax",
 Publisher = "Princeton University Press",
 pages = "1-2",
 year = "1964",
 URL = "http://www.nber.org/chapters/c0759",
}
@book{NBERkahn64-1,
 title = "Business and Professional Income Under the Personal Income Tax",
 author = "C. Harry Kahn",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "Princeton University Press",
 year = "1964",
 URL = "http://www.nber.org/books/kahn64-1",
}