@inbook{NBERc1802,
 Crossref = "NBERabra64-1",
 title = "The Varieties of Statistical Indicators of Construction",
 author = "Moses Abramovitz",
 BookTitle = "Evidences of Long Swings in Aggregate Construction Since the Civil War",
 Publisher = "UMI",
 pages = "18-20",
 year = "1964",
 URL = "http://www.nber.org/chapters/c1802",
}
@book{NBERabra64-1,
 title = "Evidences of Long Swings in Aggregate Construction Since the Civil War",
 author = "Moses Abramovitz",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "UMI",
 year = "1964",
 URL = "http://www.nber.org/books/abra64-1",
}