311 Mill S2 Mills, Frederick Cecil, 1892- Statistical methods applied to economies and business, by Frederick Cecil Mills. Revised. New York, H. Holt and company [c1938] xix p.1 1. , 746 p. incl. tables, diagrs. 22 cm (Half-title: American business; general editor R. C. McCrea) "List of references": p. 727-736