Delville Wood by Ian Uys?

[Wayne Harris]

I've noticed that Ian Uys has 3 titles that relate to the battle of Delville Wood - "Delville Wood", "Hold at all costs! The epic battle of Delville Wood 1916" and "Rollcall:The Delville Wood Story". I have  Hold at all costs , however I wondered if these were all the same books with different titles? Seemed quite an achievement to have 3 books covering the same battle by the same author

Thank you in advance for any clarification