@inbook{NBERc9271,
 Crossref = "NBERfabr42-2",
 title = "Productivity of Labor in Peace and War",
 author = "Solomon Fabricant",
 BookTitle = "Productivity of Labor in Peace and War",
 Publisher = "NBER",
 pages = "1-29",
 year = "1942",
 month = "September",
 URL = "http://www.nber.org/chapters/c9271",
}
@book{NBERfabr42-2,
 title = "Productivity of Labor in Peace and War",
 author = "Solomon Fabricant",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "NBER",
 year = "1942",
 URL = "http://www.nber.org/books/fabr42-2",
}