@inbook{NBERc2294,
 Crossref = "NBERrees61-1",
 title = "Appendix F: Sources and Methods for Estimates of Rent Levels",
 author = "Albert Rees",
 BookTitle = "Real Wages in Manufacturing, 1890-1914",
 Publisher = "Princeton University Press",
 pages = "154-157",
 year = "1961",
 URL = "http://www.nber.org/chapters/c2294",
}
@book{NBERrees61-1,
 title = "Real Wages in Manufacturing, 1890-1914",
 author = "Albert Rees",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "Princeton University Press",
 year = "1961",
 URL = "http://www.nber.org/books/rees61-1",
}