AN EXPERIMENT IN THE PREVENTION OF DELINQUENCY
Columbia University Press, 1951. POWERS, Edwin. [With Helen Witmer]. AN EXPERIMENT IN THE PREVENTION OF DELINQUENCY: THE CAMBRIDGE-SOMERVILLE YOUTH STUDY. Foreword by Gordon W. Allport. NY: Columbia University Press, 1951. Small 4to., grey cloth stamped in gilt. First Edition. Signed presentation by Witmer on front endpaper: "To Julius, Helen." Very..... More