@inbook{NBERc7015,
 Crossref = "NBERblan54-1",
 title = "Appendix B: Description of Procedure for Obtaining Estimates of Urban Residential Construction Based on Population Relationships",
 author = "David M. Blank",
 BookTitle = "The Volume of Residential Construction, 1889-1950",
 Publisher = "NBER",
 pages = "79",
 year = "1954",
 URL = "http://www.nber.org/chapters/c7015",
}
@book{NBERblan54-1,
 title = "The Volume of Residential Construction, 1889-1950",
 author = "David M. Blank",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "NBER",
 year = "1954",
 URL = "http://www.nber.org/books/blan54-1",
}