@inbook{NBERc6283,
 Crossref = "NBERfree86-1",
 title = "Transitions between Employment and Nonemployment",
 author = "John Ballen and Richard B. Freeman",
 BookTitle = "The Black Youth Employment Crisis",
 Publisher = "University of Chicago Press",
 pages = "75-114",
 year = "1986",
 URL = "http://www.nber.org/chapters/c6283",
}
@book{NBERfree86-1,
 title = "The Black Youth Employment Crisis",
 author = "Richard B. Freeman and Harry J. Holzer",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "University of Chicago Press",
 year = "1986",
 URL = "http://www.nber.org/books/free86-1",
}