@inbook{NBERc5688,
 Crossref = "NBERunkn47-1",
 title = "Part IV:  Resource Distribution Patterns and the Classification of Families",
 author = "William Vickrey",
 BookTitle = "Studies in Income and Wealth",
 Publisher = "NBER",
 pages = "266-297",
 year = "1947",
 URL = "http://www.nber.org/chapters/c5688",
}
@book{NBERunkn47-1,
 title = "Studies in Income and Wealth",
 author = "Edward F. Denison, Chairman,  editing committee and Selma Goldsmith,  editing committee and Simon Kuznets, editing committee and Martha Anderson, editor",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "NBER",
 year = "1947",
 URL = "http://www.nber.org/books/unkn47-1",
}