@inbook{NBERc7582,
 Crossref = "NBERalts37-1",
 title = "Technical Progress and Agricultural Depression",
 author = "Eugen Altschul and Frederick Strauss",
 BookTitle = "Technical Progress and Agricultural Depression",
 Publisher = "NBER",
 pages = "1-32",
 year = "1937",
 month = "November",
 URL = "http://www.nber.org/chapters/c7582",
}
@book{NBERalts37-1,
 title = "Technical Progress and Agricultural Depression",
 author = "Eugen Altschul and Frederick Strauss",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "NBER",
 year = "1937",
 URL = "http://www.nber.org/books/alts37-1",
}