The Shakespearean ciphers examined
Subtitle: an analysis of cryptographic systems used as evidence that some author other than William Shakespeare wrote the plays commonly attributed to him
By: by William F. Friedman & Elizebeth S. Friedman.
Contributors: Friedman, Elizebeth, 1892-1980.
Publisher: University Press
Published: 1957
Place of publication: Cambridge, [Eng.]
Number of pages: 302
Subjects: Shakespeare, William, -- 1564-1616 -- Authorship; Ciphers