US Subs in Action

ISBN 0-89747-085-0
by Robert C. Stern
Squadron/Signal Publications
(50 Pages)

This book shows a general overview about the US sub types in WWII. There are many B/W photos and there's much information about the technical history and the modifications of many US sub types through the years of service, also about the boats of the Gato Class. It's definitely a good book.