are reduced photographic reproductions of printed material on film (microfilm) or film cards (microfiche) that can be viewed and photocopied using a [?].

A large number of library resources, especially [?] materials, such as, professional journals, magazines, and newspapers articles, are preserved in a microform format in order to preserve the .

A is a sheet of film containing rows of [?] of pages of printed materials. In order to read or photocopy the printed materials on these microfiches, you need to use the microform reader/printer.