@inbook{NBERc1005,
 Crossref = "NBERhann48-1",
 title = "Composition and Patterns of Income",
 author = "Frank A. Hanna and Joseph A. Pechman and Sidney M. Lerner",
 BookTitle = "Analysis of Wisconsin Income",
 Publisher = "NBER",
 pages = "76-93",
 year = "1948",
 URL = "http://www.nber.org/chapters/c1005",
}
@book{NBERhann48-1,
 title = "Analysis of Wisconsin Income",
 author = "Frank A. Hanna and Joseph A. Pechman and Sidney M. Lerner",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "NBER",
 year = "1948",
 URL = "http://www.nber.org/books/hann48-1",
}