@inbook{NBERc1159,
 Crossref = "NBERfuch68-1",
 title = "Productivity in Services: Three Case Studies",
 author = "Victor R. Fuchs",
 BookTitle = "The Service Economy",
 Publisher = "NBER",
 pages = "99-127",
 year = "1968",
 URL = "http://www.nber.org/chapters/c1159",
}
@book{NBERfuch68-1,
 title = "The Service Economy",
 author = "Victor R. Fuchs",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "NBER",
 year = "1968",
 URL = "http://www.nber.org/books/fuch68-1",
}