A library's ownership of your work may appear different than expected for multiple reasons:
If you believe your work should be represented in WorldCat.org, please contact the owning library to request they catalog the item to accurately reflect the ownership of the title.
Please note that: OCLC does not control libraries’ representation of their collections in WorldCat, and WorldCat.org only displays what is submitted from the member library. A library may choose to not make their collections visible, which is a decision made at the library's discretion.
Also note that the cataloging library must be an OCLC member library that maintains appropriate OCLC subscriptions in order for their collections to appear on the WorldCat.org website.