Derek S. Zumbro (Zumbro, Derek S.)

• 
  via
  Battle for the Ruhr: The German Army's Final Defeat in the West
  by Derek S. Zumbro
  Hardcover, Univ Pr of Kansas, ISBN 0700614907 (0-7006-1490-7)
• 
  In Deadly Combat: A German Soldier's Memoir of the Eastern Front
  by Derek S. Zumbro, G. H. Bidermann, Dennis Showalter
  Hardcover, Univ Pr of Kansas, ISBN 0700610162 (0-7006-1016-2)
• 
  In Deadly Combat: A German Soldier's Memoir of the Eastern Front
  by G. H. Bidermann, Dennis Showalter, Derek S. Zumbro
  Softcover, Univ Pr of Kansas, ISBN 0700611223 (0-7006-1122-3)