Holly, Charles and Sloniker, Mike. Primer Of The Helicopter War. Grapevine, TX: Nissi Publishers, 1997. [ want a copy? - see below ]
Mutza, Wayne. CH-47 Chinook In Action. Carrollton, TX: Squadron/Signal Publications, 1989.
Silver, Benjamin S., Colonel (Ret.). Ride At A Gallop. Waco, TX: Davis Brothers Publishing Company, Inc., 1990. [ want a copy? - see below ]
Stanton, Shelby L. Anatomy Of A Division. Novato, CA: Presidio Press, 1987.
Chenoweth, Bob. "Guns-A-Go-Go." Great Britain: Aviation News Magazine, Volume 12, Number 4, 15-28 July 1983, 156-165.
Eaton, Loren D. Major. "Armed Chinooks." Fort Rucker, AL: The U.S. Army Aviation Digest, Volume 12, Number 7, July 1966, 26-29.
Mohr, Donald A., LCDR. "Guns-A-Go-Go." Fort Rucker, AL: The U.S. Army Aviation Digest, Volume 22, Number 6, June 1976, 8-13.
Rawlings, Morris G., LTC (Ret.). "Armed CH-47A Helicopter Employment." Fort Rucker, AL: The U.S. Army Aviation Digest, Volume 12, Number 8, August 1966, 26-28.
Boeing Company, Vertol Division. "Rollout And First Official Flight." Armed And Armored CH-47A Chinook. SB 805. (1965) November.
Boeing Company, Vertol Division. "Armed CH-47A Chinook, 1966." SB 842. (1966).
Boeing Company, Vertol Division. "CH-47A Helicopter Operator's Manual Supplement for TM 55-1520-209-10." 15 January 1966.
Ketcham, James C. WebMaster. "228th ASHB/Guns-A-Go-Go" 1st Person Account Letters and Photographs received via USPS mail and Internet email.
White, Frank - WebMaster - "gunsagogo.org" 1st Person Account Letters and Photographs received via USPS mail and Internet e-mail.
Ride At A Gallop is Ben Silver's history of the Chinook and the 228th's role in the Army's new "Air Assault" concept. Ben was the commander of the hooks in the 11th Air Assault and the first Battalion Commander of the 228th ASHB, 1st Cavalry Division. Ben still has copies at his home in Gatesville, TX. Call him at (254) 865-5473 for a copy of this great historical reference.
Primer Of The Helicopter War is "the" book about helicopters and Vietnam. It is available on the WWW from Nissi Publishing.