It is possible to use the free JournalTOCs to create links from a library’s A-Z list of journals (or any other mention of a journal or list of journals, for that matter) to the latest Table of Contents for that journal.
The above example is taken from the WattJournals customised implementation of JournalTOCs.
To do this for any journal included in JournalTOCs you can use this URL:
Where xxxx is the journal ISSN number (print or online, it doesn’t matter).
For the example in the graphic above, Heat and Mass Transfer the URL is: http://www.journaltocs.ac.uk/index.php?action=tocs&journalISSN=1432-1181
For more information, see the For Librarians page at JournalTOCs.