Answered By: Donna Wrublewski
Last Updated: Jun 28, 2021     Views: 25

Some valuable information resources (technical reports, dissertations, archival collections, etc.) are only available on microfilm. This is particularly relevant for grey literature and unpublished materials from the mid-20th century when microfilming was considered a convenient way to capture a lot of information in a concise format at reasonable cost. Some of these materials have since been digitized and are now available online, but we maintain select microfilm collections for content for which we cannot offer online access.

COVID-19 notice

Some services may have changed as a result of COVID-19. Please check our COVID-19 guide for more information.

Looking for a specific item?

Caltech books, ebooks, & more - Catalog

Caltech subscribed journals - Journals List

Popular books - Your local library