@inbook{NBERc10374,
 Crossref = "NBERzarn92-1",
 title = "Facts and Factors in the Modern Evolution of U. S. Economic Fluctuations",
 author = "Victor Zarnowitz",
 BookTitle = "Business Cycles: Theory, History, Indicators, and Forecasting",
 Publisher = "University of Chicago Press",
 pages = "77-124",
 year = "1992",
 month = "January",
 URL = "http://www.nber.org/chapters/c10374",
}
@book{NBERzarn92-1,
 title = "Business Cycles: Theory, History, Indicators, and Forecasting",
 author = "Victor Zarnowitz",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "University of Chicago Press",
 year = "1992",
 URL = "http://www.nber.org/books/zarn92-1",
}