Guilford, J. P. 1897-1987. Psychometric methods / J. P. Guilford. - 2d ed. - New York : McGraw-Hill, c1954. - 597 p. : illus. ; 24 cm. - McGraw-Hill series in psychology . Subjects--Topical Terms: Psychometrics. Dewey Class. No.: 152.8 / GUP 1954