Of Ghosts and Spirits Walking by Night

Of Ghosts and Spirites Walking by Night…etc., written by Lewew Lavaterus of Tigurine and translated into Englyshe by R.H. Printed at London by Henry Benneyman for Richard Watkins. 1572 (STC 15866)

Of Ghosts and Spirits Walking by Nyght. 1572. Edited with Introduction and Appendix by Wilson J. Dover and Yardley Mary . Printed for the Shakespeare Association at the University Press, Oxford. 1929. (unfortunately long out of print.)

What Happens in Hamlet? Wilson J. Dover . Cambridge University Press. 1935. (See Chapter III: Ghost or Devil?)

Oeuvres Complètes de Robert Garnier. Paris. Librairie Garnier. 1923. 2 volumes.

The Works of Thomas Kyd edited by Boas Frederick S. . Oxford. 1901.

Hamlet. Edited by Wilson J. Dover . The New Shakespeare. Cambridge University Press. 1934.

for further information on the use of Ghosts in pre-Shakespearean drama, see: The Pre-Shakespearean Ghost and Shakespeare's Ghosts. Moorman F.W. . MLR. Volume I. Number 2. 1906.