@inbook{NBERc1318,
 Crossref = "NBERgreb56-1",
 title = "Preview of Findings",
 author = "Leo Grebler and David M. Blank and Louis Winnick",
 BookTitle = "Capital Formation in Residential Real Estate: Trends and Prospects",
 Publisher = "Princeton University Press",
 pages = "7-29",
 year = "1956",
 URL = "http://www.nber.org/chapters/c1318",
}
@book{NBERgreb56-1,
 title = "Capital Formation in Residential Real Estate: Trends and Prospects",
 author = "Leo Grebler and David M. Blank and Louis Winnick",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "Princeton University Press",
 year = "1956",
 URL = "http://www.nber.org/books/greb56-1",
}