Cita APA (7a ed.)
Ellerton, N. F., & Clements, M. Abraham Lincoln’s Cyphering Book and Ten other Extraordinary Cyphering Books. Springer.
Cita estilo Chicago (17a ed.)
Ellerton, Nerida F., y M.A Clements. Abraham Lincoln’s Cyphering Book and Ten Other Extraordinary Cyphering Books. Cham, Suiza: Springer.
Cita MLA (9a ed.)
Ellerton, Nerida F., y M.A Clements. Abraham Lincoln’s Cyphering Book and Ten Other Extraordinary Cyphering Books. Springer.
Precaución: Estas citas no son 100% exactas.