Chicago:
John Bagnell Bury, "[Dedication]," The Idea of Progress: An Inguiry Into Its Origin and Growth in The Idea of Progress: An Inguiry Into Its Origin and Growth (New York: The Macmillan Company, 1932), Original Sources, accessed March 14, 2026, http://www.originalsources.com/Document.aspx?DocID=C1SPXH6VQ3DCS4R.
MLA:
Bury, John Bagnell. "[Dedication]." The Idea of Progress: An Inguiry Into Its Origin and Growth, in The Idea of Progress: An Inguiry Into Its Origin and Growth, New York, The Macmillan Company, 1932, Original Sources. 14 Mar. 2026. http://www.originalsources.com/Document.aspx?DocID=C1SPXH6VQ3DCS4R.
Harvard:
Bury, JB, '[Dedication]' in The Idea of Progress: An Inguiry Into Its Origin and Growth. cited in 1932, The Idea of Progress: An Inguiry Into Its Origin and Growth, The Macmillan Company, New York. Original Sources, retrieved 14 March 2026, from http://www.originalsources.com/Document.aspx?DocID=C1SPXH6VQ3DCS4R.