@inbook{NBERc4272,
 Crossref = "NBERgoul46-1",
 title = "Electric Light and Power",
 author = "Jacob Martin Gould",
 BookTitle = "Output and Productivity in the Electric and Gas Utilities, 1899-1942",
 Publisher = "NBER",
 pages = "13-75",
 year = "1946",
 URL = "http://www.nber.org/chapters/c4272",
}
@book{NBERgoul46-1,
 title = "Output and Productivity in the Electric and Gas Utilities, 1899-1942",
 author = "Jacob Martin Gould",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "NBER",
 year = "1946",
 URL = "http://www.nber.org/books/goul46-1",
}