@inbook{NBERc8323,
 Crossref = "NBERgord90-1",
 title = "Appendix C (Tables C.l-C.6). "Secondary" PDE Categories, Annual Listing of Alternative and Official Price Indexes (1972 = 1.00)",
 author = "Robert J. Gordon",
 BookTitle = "The Measurement of Durable Goods Prices",
 Publisher = "University of Chicago Press, 1990",
 pages = "696-704",
 year = "1990",
 month = "January",
 URL = "http://www.nber.org/chapters/c8323",
}
@book{NBERgord90-1,
 title = "The Measurement of Durable Goods Prices",
 author = "Robert J. Gordon",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "University of Chicago Press, 1990",
 year = "1990",
 URL = "http://www.nber.org/books/gord90-1",
}