monographs & books

DE RICCI Seymour (1937) Census of Medieval and Renaissance Manuscripts in the United States and Canada. Bibliographical Society of America, New York. (Reprint 1961)

D'IMPERIO Mary E. (1978) The Voynich Manuscript: An Elegant Enigma. Fort George G. Meade, Maryland. National Security Agency (NSA).

https://www.nsa.gov/about/_files/cryptologic_heritage/publications/misc/voynich_manuscript.pdf

BRUMBAUGH Robert Sherrick (1977) The World's Most Mysterious Manuscript. Carbondale: Southern Illinois University Press, 1978. London: Weidenfeld and Nicholson

FEELY Joseph Martin (1943) Roger Bacon's Cipher: The Right Key Found. Rochester, NY

KAHN David (1967) The Codebreakers. MacMillan. pp.863-872, pp.1120-1121.

KAHN David (1962) The Secret Book. Newsday. 26 June 1962

KENNEDY Gerry & CHRUCHILL Rob (2004) The Voynich Manuscript. The riddle of an extraordinary book which has defied interpretation for centuries. Orion Books Ltd.

KRAUS Hans Peter (1978) A Rare Book Saga: the Autobiography of H. P. Kraus. Putnam, New York

NEWBOLD William Romaine (1928) The Cipher of Roger Bacon. Edited with foreword and notes by Roland Grubb Kent. University of Pennsylvania Press, Philadelphia; H. Milford, Oxford University Press, London

PELLING Nicholas John (2006) The Curse of the Voynich. The Secret History of the World's Most Mysterious Manuscript. Comelling Press.

POUNDSTONE W. (1988) Labyrinths of Reason. Doubleday, New York

STOJKO John (1978) Letters to God’s Eye: The Voynich Manuscript for the first time deciphered and translated into English. Vantage Press.

BLUNT Wilfrid & RAPHAEL Sandra (1979) The Illustrated Herbal. London: Thames and Hudson, in association with the Metropolitan Museum of Art.

LEVITOV Leo (1987) Solution of the Voynich Manuscript: A Liturgical Manual for the Endura Rite of the Cathari Heresy, the Cult of Isis. Laguna Hills, California: Aegean Park Press, 1987.