Anyone can use Dissertation Express to purchase a dissertation or thesis if ProQuest has a copy. You are prompted to create a free ProQuest account before you can see a quote, but they're typically $38 for a PDF and higher for a print copy. There is no charge for the PDF if the author has made their dissertation open access.
If you are not a UCSD student, faculty or staff member, you can:
As a visitor to the UCSD Library you can:
But you cannot:
However, you can: