Elements of statistics with application to economic data, by Harold T. Davis ... and the late W.F.C. Nelson ... Davis, Harold T. (Harold Thayer), 1892-1974. Nelson, William Franklin Cram, 1900-1936, joint author. Statistics. Economics, Mathematical. Logarithms. HA29 .D33 1937 311.2 18 DAE Bibliography included in preface; "Sources of statistical data": p. 11-14; "References": p. 369-370. Bloomington, Ind., The Principia Press, Inc. [c1937] [c1937] 1937 Text xii, 434 p. eng