A published dissertation is a book and should be cited accordingly.
Unpublished dissertation/thesis
In-text citation
(Lane, 2002).
Reference List
Lane, P. (2002). An exploration of the health and social care needs and experiences of family carers of older people. [Unpublished doctoral
dissertation]. Waterford Institute of Technology.
Format:
Author(s)' surname, Initials. (Year of publication). Title of thesis/dissertation. [Description - doctoral dissertation or master's thesis]. Institution where thesis/dissertation is held.