The Shakespearean ciphers examined : an analysis of cryptographic systems used as evidence that some other author other than William Shakespeare wrote the plays commonly attributed to him / by William F. Friedman Elizebeth S. Friedman.

On the Shakespearean authorshop of the three parts of Henry VI / by Margaret Lucy.

The Shakespeare conspiracy / Graham Phillips and Martin Keatman.

The authorship of Shakespeare's plays : a socio-linguistic study / Jonathan Hope.

The case for Shakespeare's authorship of 'The famous victories : with the complete text of the anonymous play / Seymour M. Pitcher.

Shakespeare : in fact / Irvin Leigh Matus.

Shakespeare's earliest tragedy : Studies in Titus Andronicus / G. Harold Metz.

The Oxford-Shakespeare case corroborated / by Percy Allen.

Shakespeare and his betters : a history and a criticism of the attempts which have been made to prove that Shakespeare's works were written by others / by R.C. Churchill. With collaboration in bibliography and research by Maurice Hussey. Foreword by Ivor Brown.