Gesell, Arnold Lucius, 1880- Youth : the years from ten to sixteen / by Arnold Gesell, Fran ces L. Ilg [and] Louise Bates Ames. - New York : Harper, c1956. - xv, [1], 542 p. ; 24 cm. Bibliography: p.517-523. Subjects--Topical Terms: Adolescence--------Child study.-------- Dewey Class. No.: 155.5 GES