A book that may furnish addition information or different perspective is the highly regarded Fighter, by Len Deighton
I practically beg people to buy what I think is far and away Deighton's best work.
http://www.amazon.com/Bomber-Len-Deighton/dp/1402790546The product of hundreds of interviews by war survivors on both sides, Bomber is a fictionalised account of 24 hours in June of 1943 and of everyone involved and affected by a single RAF night raid. An extraordinary book, the single best WWII aviation/war book I have ever read.
Birdwatcher