A reference for wartime combined-operations training

What reference is suggested for studying Second World War combined-operations training establishments?

Begin with a combined-operations official history, although the recommended author's name is uncertain in the captions.

A combined-operations official history is recommended as a starting point for studying Royal Navy training establishments during the Second World War. The establishments' names and the recommended author's name are unclear in the captions, so a precise bibliographic identification remains uncertain.