Answered By: Nazlin Bhimani Last Updated: Nov 30, 2018 Views: 69
Without seeing what you have, it is difficult to tell but try these two options:
(1) Search the Library Catalogue, Explore, with some key words relevant to the dissertation and then refine the search by type e.g. 'disserations' and maybe even by the range of years if you have a rough idea of when it could have been written.
(2) Type in some of the text on Google and/or Google Scholar to see if the work has been cited by others.