The Sioux, by Irene Handl (Johnathan Cape, 1984). From a second-hand
The New Minds, by Dan Morgan (Corgi, 1967). From a charity shop
Time For Caution, by Peter Cheyney (William Foster, 1946). From
England, Half English, by Colin MacInnes (Penguin, 1966). From
The Man With A Shattered World, by A.R. Luria (Penguin, 1975).
Penthouse Party, by Gerald Kramer (MIdwood Publications, 1965).