@inbook{NBERc0650,
 Crossref = "NBERstig63-1",
 title = "Introduction to "Capital and Rates of Return in Manufacturing Industries"",
 author = "George J. Stigler",
 BookTitle = "Capital and Rates of Return in Manufacturing Industries",
 Publisher = "UMI",
 pages = "3-10",
 year = "1963",
 URL = "http://www.nber.org/chapters/c0650",
}
@book{NBERstig63-1,
 title = "Capital and Rates of Return in Manufacturing Industries",
 author = "George J. Stigler",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "UMI",
 year = "1963",
 URL = "http://www.nber.org/books/stig63-1",
}