History
O'NEILL, Richard
Suicide Squads - Axis and Allied Special Attack Weapons of World War II: their Development and their Missions
PARHAM, Major General H.J. & BELFIELD, E.M.G.
Unarmed into Battle - The Story of the Air Observation Post
PHILLIPS, J. Alwyn
Valley of the Shadow of Death - The Bomber Campaign, March - July 1943
PHILPOTT, Bryan
In Enemy Hands
Revealing true stories behind wartime Allied aircraft losses