@inbook{NBERc12680,
 Crossref = "NBERclot08-1",
 title = "Front matter, preface acknowledgments, table of contents",
 author = "Charles T. Clotfelter",
 BookTitle = "American Universities in a Global Market",
 Publisher = "University of Chicago Press",
 year = "2008",
 month = "October",
 URL = "http://www.nber.org/chapters/c12680",
}
@book{NBERclot08-1,
 title = "American Universities in a Global Market",
 author = "Charles T. Clotfelter",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "University of Chicago Press",
 year = "2010",
 URL = "http://www.nber.org/books/clot08-1",
}