Abraham Lincoln's cyphering book and ten other extraordinary cyphering books. - Ellerton, Nerida Fay 1942-; Clements, McKenzie Alexander 1942-; Rickey, V. Frederick 1941- (Cham : Springer, 2014)
Keywords: CRIPTOGRAFIA; CIFRAS Y CLAVES; MATEMATICAS -- ESTUDIO Y ENSEÑANZA -- HISTORIA