Increasing return : a study of the relation between the size and efficiency of industries, with special reference to the history of selected British & American industries, 1850-1910 - Jones, George Thomas, 1905-.; Clark, Colin, 1905-1989. (Cambridge : Cambridge U.P., 1933)
Keywords: Industrial efficiency; Index numbers (Economics); Industries; Industries -- United States; Industries -- United States -- History -- 19th century; Industries -- Great Britain; Great Britain -- Industries -- Statistics; Great Britain -- Industries -- 19th century -- History