- Artillery: A History
- The Enduring Struggle: The History of the U.S. Agency for International Development and America's Uneasy Transformation of the World
- World War II Trucks and Tanks
- 88 mm FlaK 18/36/37/41 and PaK 43 1936-45 (New Vanguard)
- A Practical Treatise Concerning Humility: Design'd for the Furtherance and Improvement of That Great Christian Vertue, Both in the Minds and Lives of Men