Oldiees Publishing, James Allen (2015). “The Book of Inspiration: As a Man Thinketh - AUDIO EDITION OF SELF IMPROVEMENT IDEAS & INSPIRATIONAL QUOTES FOR PERSONAL DEVELOPMENT”, p.16, Oldiees Publishing
James Allen (2013). “As a Man Thinketh: The Book of Thoughts, Health and Body, Character, Purpose, Achievement, Visions and Ideals (New Thought Edition - Secret Library)”, p.23, Lulu Press, Inc
James Allen (2013). “As a Man Thinketh: The Book of Thoughts, Health and Body, Character, Purpose, Achievement, Visions and Ideals (New Thought Edition - Secret Library)”, p.23, Lulu Press, Inc
James Allen (2013). “As a Man Thinketh: The Book of Thoughts, Health and Body, Character, Purpose, Achievement, Visions and Ideals (New Thought Edition - Secret Library)”, p.24, Lulu Press, Inc