You can purchase In The Shadow of Death by Idris James Barwick 
at any U.K. bookstore. You can also order it from any U.S. bookstore, or you can order
online through one of the following vendors:

When ordering, keep the following information handy:

Title: In the Shadow of Death, The Story of a Medic on the Burma Railway, 1942 - 1945
Author: Idris James Barwick
Publisher: Pen & Sword Books
ISBN: 1-84415-246-4