Senescence, the Last Half of Life: Embracing Wisdom: A Psychological Journey Through the Last Half of LifeG. Stanley Hall
Adolescence - Its Psychology and Its Relations to Physiology, Anthropology, Sociology, Sex, Crime, and Religion (1931)G. Stanley Hall
Youth: Its Education, Regimen, and Hygiene: A Comprehensive Guide to Adolescent Development and Well-beingG. Stanley Hall