Hellwig, Zdzislaw. Linear regression and its application to economics / by Z. Hellwig ; Translated from the Polish by J. Stadler ; Translation edited by H. Infeld. - New York : Macmillan, c1963. - xii, 411p. : illus. ; 19 cm. Subjects--Topical Terms: Regression AnalysisEconomics, Mathematical. Dewey Class. No.: 519.536 / HEL 1963