@inbook{NBERc8593,
 Crossref = "NBERito_97-1",
 title = "Introduction to "Regionalism versus Multilateral Trade Arrangements"",
 author = "Takatoshi Ito and Anne O. Krueger",
 BookTitle = "Regionalism versus Multilateral Trade Arrangements, NBER-EASE Volume 6",
 Publisher = "University of Chicago Press",
 pages = "1-8",
 year = "1997",
 month = "January",
 URL = "http://www.nber.org/chapters/c8593",
}
@book{NBERito_97-1,
 title = "Regionalism versus Multilateral Trade Arrangements, NBER-EASE Volume 6",
 author = "Takatoshi Ito and Anne O. Krueger",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "University of Chicago Press",
 year = "1997",
 URL = "http://www.nber.org/books/ito_97-1",
}