UCSD provides documentation for preparing graduate theses and dissertations which may help: Section III: Organization of Doctoral Dissertations and Master's Theses is probably most helpful, but this also provides very specific detail about specific sections (ie abstracts, acknowledgments, the use of images and statistics, etc.) -- rather than guidance on the overall structure and not information specific to undergrads.
See the Dissertations & Theses Research Guide for more information.
Various subject-based databases index and abstract dissertations and some theses that you can use as sources for your research and templates for your own theses. These include:
This database indexes and abstracts 2.3 million works issued by graduate institutions in North America and beyond from 1861 to the present. PDF full texts of most UC dissertations starting about 1997 are available online at no charge.
If the dissertation or theses is not available full-text
CRL is a good source for foreign dissertations; our CRL membership provides free loans for UCSD researchers.
Use this UCSD LibGuide for more links to ETD (electronic theses and dissertations) repositories across the globe.
UC Dissertations and Theses can also be found by
There are also additional resources to find Undergraduate Theses: