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Publication Order of WWII Collection Books
| Gateway to Hell | (1979) | Hardcover  Paperback  Kindle |
| Tiger | (2013) | Hardcover  Paperback  Kindle |
| War Machines | (2013) | Hardcover  Paperback  Kindle |
Publication Order of The Zone Books
| Hard Target | (1980) | Hardcover  Paperback  Kindle |
| Blind Fire | (1980) | Hardcover  Paperback  Kindle |
| Hunter Killer | (1981) | Hardcover  Paperback  Kindle |
| Sky Strike | (1981) | Hardcover  Paperback  Kindle |
| Overkill | (1982) | Hardcover  Paperback  Kindle |
| Plague Bomb | (1986) | Hardcover  Paperback  Kindle |
| Killing Ground | (1988) | Hardcover  Paperback  Kindle |
| Civilian Slaughter | (1989) | Hardcover  Paperback  Kindle |
| Body Count | (1990) | Hardcover  Paperback  Kindle |
Publication Order of Non-Fiction Books