Davis, James A., 1929- Elementary survey analysis / [by] James A. Davis. - Englewood Cliffs, N.J. : Prentice-Hall, 1971. - xi, 195 p. : illus. ; 23 cm. - Prentice-Hall methods of social science series . Includes bibliographical references. Subjects--Topical Terms: Social surveys LC Class. No.: HN29 Dewey Class. No.: 300/.72/3