v. 1. Great Britain and Germany
v. 2. USSR, USA, Japan, Canada, Sweden, Switzerland, Italy, Czechoslovakia and Hungary.
OBNB doesn't sell books, but you may be able to find a copy at one of these websites:
Turbojet : history and development, 1930-1960 by Antony L. Kay. ISBN 9781861269393. Published by Crowood in 2007. Publication and catalogue information, links to buy online and reader comments.
