Vernon, Philip Ewart. The structure of human abilities / Philip Ewart Vernon - London: New York: Methuen, Wiley, [1950] - 160 p.: diagrs.; 22 cm. - Methuen's manuals of modern psychology, 1 . Includes bliographical references ( p. [136]-151.) Subjects--Topical Terms: Factor analysis.Ability. Dewey Class. No.: 151.2652