@inbook{NBERc3122,
 Crossref = "NBERfabr52-1",
 title = "Interstate Differences in Government Activity",
 author = "Solomon Fabricant and Robert E. Lipsey",
 BookTitle = "The Trend of Government Activity in the United States Since 1900",
 Publisher = "UMI",
 pages = "112-139",
 year = "1952",
 URL = "http://www.nber.org/chapters/c3122",
}
@book{NBERfabr52-1,
 title = "The Trend of Government Activity in the United States Since 1900",
 author = "Solomon Fabricant and Robert E. Lipsey",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "UMI",
 year = "1952",
 URL = "http://www.nber.org/books/fabr52-1",
}