If any of you happen by a library, here are some titles that might be helpful:
Benecke, T. (ed). History of German Guided Missiles Development. Brunswick: Appelhans, 1957.
Brooks, Geoffrey. Hitler's Terror Weapons: From Doodlebug to Nuclear Warheads. Barnsley, UK: Pen and Sword Books Ltd, 2002.
Collier, Basil. The Battle of the V-Weapons, 1944-1945. New York: William Morrow and Company, 1964.
Cooksley, Peter G. Flying Bomb: The Story of HitlerТs V-Weapons in World War II. London: Robert Hale, 1979.
Darlow, Steve. Sledgehammers for Tintacks: Bomber Command Combats the V-1 Menace, 1943-1944.
London: Grub Street, 2002
Garlinski, Jozef. Hitler's Last Weapons: The Underground War against the V1 and V2. New York: Times Books, 1978.
Georg, Friedrich. Hitler's Miracle Weapons, volume 2: The Secret History of the Rockets and Flying Craft of the Third Reich. Solihull, UK: Helion & Company, 2005.
Henshall, Philip. Hitler's V-Weapons Sites. Stroud, UK: Sutton Publishing Ltd, 2002.
Holsken, Dieter. V-Missiles of the Third Reich. Sturbridge: Monogram Aviation, 1994.
Irons, Roy. Hitler's Terror Weapons: The Price of Vengeance. New York: HarperCollins Publishers, Inc, 2002.
Irving, David. The Mare’s Nest. London: William Kimber, 1964.
Johnson, David. V-1, V-2: Hitler's Vengeance on London. New York: Stein and Day, 1981 and 1983.
King, Benjamin and Timothy Kutta. Impact: The History of Germany's V-Weapons in World War II. New York: Da Capo Press, 2003.
Maeseneer, Guido De. Peenemunde: The Extraordinary Story of Hitler's Secret Weapons, V-1 and V-2. Vancouver, BC: AJ Publishing, 2002.
Miranda, J. and P. Mercado. Secret Wonder Weapons of the Third Reich: German Missiles, 1934-1945. Atglen, PA: Schiffer Publishing Ltd, 1996.
Neufeld, Michael J. Rocket and the Reich: Peenemunde and the Coming of the Ballistic Missile Era. New York: Free Press, 1995.
Piszkiewicz, Dennis. Nazi Rocketeers: Dreams of Space and Crimes of War. Westport: Praeger, 1995.
Pocock, Rowland. German Guided Missiles of the Second World War. New York: Arco Publishing, 1967.
Zaloga, Steven J. New Vanguard 106. V-1 Flying Bomb 1942-52: Hitler's Infamous Doodlebug. Botley, UK: Osprey Publishing, 2005.