*Doctoral dissertations on microfilm are currently being transferred to the offsite shelving facility (ReCAP) and may not be available for viewing on microfilm.  Once at ReCAP, microforms can be requested for viewing at any Columbia University library!  Dissertations may also be available in other formats.  Consult CLIO or a staff member for more information.

For Periodicals Holdings, consult CLIO. (See section: How to search for serials).
For Microforms Holdings, consult both CLIO and the card catalog.
Both collections are non-circulating, but copiers and microform reader/printers and scanners are available for use.