General Rule:
Author, A. A. (year). Title of doctoral dissertation or master’s thesis (Publication No. #) [Doctoral dissertation or master’s thesis, Name of Institution Awarding the Degree]. Name of Database.
Example:
Davis, P. M. (2010). Access, readership, citations: A randomized controlled trial of scientific journal publishing. (Publication No. 3429815) [Doctoral dissertation, Cornell University]. ProQuest Dissertations and Theses Global.