@inbook{NBERc1222,
 Crossref = "NBERmint67-1",
 title = "Instability of U.S. Exports: Comparison of Prices, Quantities, and Values",
 author = "Ilse Mintz",
 BookTitle = "Cyclical Fluctuations in the Exports of the United States since 1879",
 Publisher = "Columbia University Press",
 pages = "63-87",
 year = "1967",
 URL = "http://www.nber.org/chapters/c1222",
}
@book{NBERmint67-1,
 title = "Cyclical Fluctuations in the Exports of the United States since 1879",
 author = "Ilse Mintz",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "Columbia University Press",
 year = "1967",
 URL = "http://www.nber.org/books/mint67-1",
}