@inbook{NBERc1831,
 Crossref = "NBERfuch64-1",
 title = "Summary",
 author = "Victor R. Fuchs",
 BookTitle = "Productivity Trends in the Goods and Service Sectors, 1929-61: A Preliminary Survey",
 Publisher = "UMI",
 pages = "39-41",
 year = "1964",
 URL = "http://www.nber.org/chapters/c1831",
}
@book{NBERfuch64-1,
 title = "Productivity Trends in the Goods and Service Sectors, 1929-61: A Preliminary Survey",
 author = "Victor R. Fuchs",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "UMI",
 year = "1964",
 URL = "http://www.nber.org/books/fuch64-1",
}