- The I Ching of Management: An Old-Age Study for New Age Managers by William E. Sadler, 1996-01-01
- Worry and nervousness: or, The science of self-mastery by William Samuel Sadler, 2010-08-09
- Perspectives in Differentiation and Hypertrophy: 1st: Symposium Proceedings
- The physiology of faith and fear; or, The mind in health and disease by William Samuel Sadler, 2010-09-01
- The Mother and Her Child [ 1916 ] by William Samuel Sadler, 2009-08-10
- I Ching del Manager (Italian Edition) by William Sadler, 1997-11-01
- Cause and cure of headaches, backaches and constipation, (Modern health library) by William Samuel Sadler, 1938
- Race Decadence by William Samuel Sadler, 2010-02-03
- The quest for happiness;: How you can keep happy, by William Samuel Sadler, 1943
- The truth about mental healing, by William Samuel Sadler, 1938
- Theory and practice of psychiatry, by William Samuel Sadler, 1936
- Diet and food values with key to weight control by William Samuel Sadler, 1943
- Adolescence problems,: A handbook for physicians, parents, and teachers by William Samuel Sadler, 1948
- Piloting modern youth;: A guide for parents, teachers, and others dealing with adolescents, by William Samuel Sadler, 1931
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