@inbook{NBERc3325,
 Crossref = "NBERdick70-1",
 title = "Philanthropy in the American Economy An introduction ",
 author = "Solomon Fabricant",
 BookTitle = "The Changing Position of Philanthropy in the American Economy",
 Publisher = "UMI",
 pages = "1-30",
 year = "1970",
 URL = "http://www.nber.org/chapters/c3325",
}
@book{NBERdick70-1,
 title = "The Changing Position of Philanthropy in the American Economy",
 author = "Frank G. Dickinson",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "UMI",
 year = "1970",
 URL = "http://www.nber.org/books/dick70-1",
}