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 November 3, 2025, http://www.originalsources.com/Document.aspx?DocID=L27TTF9IZ4RRS6J.
								
							
							
								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. 3 Nov. 2025. http://www.originalsources.com/Document.aspx?DocID=L27TTF9IZ4RRS6J.
								
							
							
								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 3 November 2025, from http://www.originalsources.com/Document.aspx?DocID=L27TTF9IZ4RRS6J.