Bowers, Q. D., & Sundman, D. M. (2006). 100 greatest American currency notes: The stories behind the most fascinating colonial, Confederate, federal, obsolete, and private American notes. Atlanta: Whitman Publishing.

Bowers, Q. David., and David M. Sundman. 100 Greatest American Currency Notes: The Stories Behind the Most Fascinating Colonial, Confederate, Federal, Obsolete, and Private American Notes. Atlanta: Whitman Publishing, 2006.

Bowers, Q. David., and David M. Sundman. 100 Greatest American Currency Notes: The Stories Behind the Most Fascinating Colonial, Confederate, Federal, Obsolete, and Private American Notes. Atlanta: Whitman Publishing, 2006.