@inbook{NBERc1640,
 Crossref = "NBERcaga65-1",
 title = "The Money Stock and Its Three Determinants",
 author = "Philip Cagan",
 BookTitle = "Determinants and Effects of Changes in the Stock of Money, 1875-1960",
 Publisher = "NBER",
 pages = "1-16",
 year = "1965",
 URL = "http://www.nber.org/chapters/c1640",
}
@book{NBERcaga65-1,
 title = "Determinants and Effects of Changes in the Stock of Money, 1875-1960",
 author = "Philip Cagan",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "NBER",
 year = "1965",
 URL = "http://www.nber.org/books/caga65-1",
}