@inbook{NBERc5298, Crossref = "NBERfrie70-1", title = "Indexes", author = "Milton Friedman and Anna Jacobson Schwartz", BookTitle = "Monetary Statistics of the United States: Estimates, Sources, Methods", Publisher = "NBER", pages = "613-629", year = "1970", URL = "http://www.nber.org/chapters/c5298", } @book{NBERfrie70-1, title = "Monetary Statistics of the United States: Estimates, Sources, Methods", author = "Milton Friedman and Anna Jacobson Schwartz", institution = "National Bureau of Economic Research", type = "Book", publisher = "NBER", year = "1970", URL = "http://www.nber.org/books/frie70-1", }