@inbook{NBERc9259,
 Crossref = "NBERdean41-1",
 title = "Memorandum on Costs in Relation to Output",
 author = "C. Reinold Noyes",
 BookTitle = "The Relation of Cost to Output for a Leather Belt Shop",
 Publisher = "NBER",
 pages = "53-72",
 year = "1941",
 URL = "http://www.nber.org/chapters/c9259",
}
@book{NBERdean41-1,
 title = "The Relation of Cost to Output for a Leather Belt Shop",
 author = "Joel Dean",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "NBER",
 year = "1941",
 URL = "http://www.nber.org/books/dean41-1",
}