With these tools you can collect book and article citations from the library catalog and databases. Then using a plugin for MS Word, you can insert those citations into your paper in the appropriate format.
See the library guide, Manage Citations with Zotero, Mendeley, and EndNote, on how to use these tools.
Many databases have built-in citation generators. The EbscoHost databases include a Cite link in each full record.
When searching in the PSU Library catalog, you can find a citation generator for MLA, APA, or the Chicago Manual of Style under each tab by selecting Send to then Citation.