@inbook{NBERc4375,
 Crossref = "NBERjust77-1",
 title = "The Persistence of Male-Female Earnings Differentials",
 author = "Ronald L. Oaxaca",
 BookTitle = "Distribution of Economic Well-Being",
 Publisher = "NBER",
 pages = "303-354",
 year = "1977",
 URL = "http://www.nber.org/chapters/c4375",
}
@book{NBERjust77-1,
 title = "Distribution of Economic Well-Being",
 author = "F. Thomas Juster",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "NBER",
 year = "1977",
 URL = "http://www.nber.org/books/just77-1",
}