For a Newcastle University thesis, use Library Search (see link below) to find the thesis you want to request. If you choose 'Advanced search', you can restrict your search to theses by selecting from the 'materials type' box.

Click on the Locations/Request tab for the thesis entry and then on the 'request' link (you may be asked to log in using your campus credentials). Fill in the request form and click on 'submit request'.

To request a thesis from another UK library, use the the British Library's EthOS service (see link below).