There are special tools - make use of them!
NOTE: If you are a current Oxford University member and find useful articles in journals to which the Bodleian does not have a subscription consider an Inter-Library Loan
If you are doing a subject search in SOLO, it is sensible to try Caribbean Area and/or Caribbean Community rather than the names of individual
If your SOLO search finds you a book with a shelf mark based on an island grouping or jurisdiction eg Cw W Indies 510 you will find the work on Level 1.
It the shelf mark begins General or Cw Gen. these monographs are on Level 2
NOTE: Internat or Private Int at the beginning of a shelf mark means that you need to go to Level 3 for the international law collections