Haanel, Charles F. b. 1866. The master key system/ Charles F. Haanel ; edited by Ruth L. Miller. - 1st Atria Books/Beyond Words hardcover ed. - New York: Atria Books/Beyond Words Pub., 2008. - xxiii, 438 p.; 23 cm. Includes bibliographical references. ISBN: 9781582701905 Subjects--Topical Terms: New Thought.