If you are unable to locate dissertations (or theses) using these pages, please ask a librarian for assistance.
A dissertation is a book-length thesis or treatise prepared as a requirement for the award of a doctoral degree (Ph.D.)
A thesis is a book-length essay or treatise prepared as a requirement for the award of a master's degree.
Dissertations can be especially useful for locating recent research that may not yet be published in book or article format. Revised dissertations are often published later as books or scholarly articles; to find these, try searching for other works written by the same author.