@inbook{NBERc9930,
 Crossref = "NBERzarn69-1",
 title = "The New ASA/NBER Survey of Forecasts by Economic Statisticians",
 author = "Victor Zarnowitz",
 BookTitle = "Supplement to NBER Report Four: The New ASA-NBER Survey of Forecasts by Economic Statisticians",
 Publisher = "NBER",
 pages = "1-9",
 year = "1969",
 URL = "http://www.nber.org/chapters/c9930",
}
@book{NBERzarn69-1,
 title = "Supplement to NBER Report Four: The New ASA-NBER Survey of Forecasts by Economic Statisticians",
 author = "Victor Zarnowitz",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "NBER",
 year = "1969",
 URL = "http://www.nber.org/books/zarn69-1",
}