If you enjoyed that, go to << http://www.olgoat.com/substuff/abr.htm >>. This is the Navy I served with, and why "DBF" is still alive.
However, back to the purpose of this post. Here's a list of a few books I'd recommend, in addition to whats already been recommended. If you can get them.
US Submarines Through 1945 - Norman Friedman ISBN T-55751-263-3
Fleet Submarines of World War Two - Floating Drydock ISBN 0-933126-72-7
*USS Bowfin (SS-287) - Leeward Publications/Ship's Data 3 ISBN 0-915268-05-1
*USS Barb (SS-220) - Profile Warship 34 Published IN UK 1973, no ISBN listed
The Fleet Submarine In The US Navy - John D. Alden ISBN 0-85368-203-8
Gato Type Fleet Submarines - Classic Warship Publications ISBN 0-9745687-7-5
Gato-Class Submarines in action (Warships No. 28) - Squadron Shop ISBN 0-89747-509-7
*U.S.Subs in action (Warships No, 2) - Squadron Shop ISBN 0-89747-085-0
US Submarines 1941-45 - Jin Christley, Osprey/New Vanguard ISBN 1-84176-859-6
Submarines Of The US Navy - Terzibaschitsch ISBN 1-85409-145-X
The ones I marked with a * are long out of print. You'll have to check a used book dealer. Some of the others may or may not be in print. At my age, it's hard to remember, which publishers I've out lived.
Mike K.