@inbook{NBERc9902,
 Crossref = "NBERaesm73-3",
 title = "Intersectoral Shifts and Aggregate Productivity Change",
 author = "Michael Grossman and Victor R. Fuchs",
 BookTitle = "Annals of Economic and Social Measurement, Volume 2, number 3",
 Publisher = "NBER",
 pages = "227-243",
 year = "1973",
 month = "July",
 URL = "http://www.nber.org/chapters/c9902",
}
@book{NBERaesm73-3,
 title = "Annals of Economic and Social Measurement, Volume 2, number 3",
 author = "Sanford V. Berg, editor",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "NBER",
 year = "1973",
 URL = "http://www.nber.org/books/aesm73-3",
}