For an unpublished thesis:
Author, A. A. (Year). Title (Unpublished doctoral dissertation/Master's thesis). Institution issuing degree, City, Country.
For a thesis available through a database service, such as ProQuest Dissertations and Theses database, include the name of the database and the accession or order number in the reference:
Author, A. A. (Year). Title (Doctoral dissertation/Master's thesis). Retrieved from Name of Database. (Accession or Order No.)
For a thesis from an institutional database:
Author, A. A. (Year). Title (Doctoral dissertation/Master's thesis). Retrieved from web address
For a thesis available on the web:
Author, A. A. (Year). Title (Doctoral dissertation/Master's thesis, Institution issuing degree). Retrieved from web address
When citing the abstract for a thesis, as from Dissertation Abstracts International:
Author, A. A. (Year). Title. Dissertation Abstracts International: Section. Title of section, Volume(Issue), Number of abstract.
Considine, M.Author (1986)Year of preparation. Australian insurance politics in the 1970s: Two case studies.Title (italicized) (Unpublished doctoral dissertation). University of Melbourne,Institution issuing degree Melbourne, Australia.Location of institution
Considine (1986) has shown ...
... was found (Considine, 1986).