MLA

Ellerton, Nerida F, M.A Clements, and M. A. Ken Clements. Abraham Lincoln’s Cyphering Book and Ten Other Extraordinary Cyphering Books. Springer International Publishing, 2014.

APA

Ellerton, N. F, Clements, M., & Clements, M. A. Ken. (2014). Abraham Lincoln’s Cyphering Book and Ten other Extraordinary Cyphering Books. Springer International Publishing.

Chicago

Ellerton, Nerida F., M.A Clements, and M. A. Ken Clements. Abraham Lincoln’s Cyphering Book and Ten Other Extraordinary Cyphering Books. : Springer International Publishing, 2014.