Many libraries use the OCLC PICA software, such as the catalogue of the Koninklijke Bibliotheek (Dutch National Library) or the Dutch National Archive. Unfortunately, it's not very user-friendly, and there's no easy way from the interface to generate a permalink to a record. When browsing search results the URL bar doesn't properly change to a permalink, and hitting 'refresh' or opening it in another browser deletes your history.
However, with this small bookmarklet you can add a small button to your browser that automatically generates a permalink from any book page.
To use it, simply drag the button below to your bookmark bar, and press it whenever you are on a book record page in the catalogue.Pica Permalink