Forts of the American Frontier 1820-1891: Central and Northern Plains (Osprey Fortress 28) Osprey Publishing | 2005 | ISBN: 1841767751 | English | 66 Pages | PDF (e-book) | 8 MB
Humble Homes, Simple Shacks, Cozy Cottages, Ramshackle Retreats, Funky Forts: And Whatever the Heck Else We Could Squeeze in Here by Derek Diedricksen 2012 | ISBN: 0762771461 | English | 104 pages | PDF | 73 MB
American Civil War Fortifications (3): The Mississippi and River Forts (Osprey Fortress 68) Osprey Publishing | 2008 | ISBN: 184603194X | English | 66 Pages | PDF (e-book) | 4 MB
American Civil War Fortifications (1): Coastal brick and stone forts By Angus Konstam, Donato Spedaliere 2003 | 64 Pages | ISBN: 1841764426 | PDF | 21 MB
Mr. Lincoln's Forts: A Guide to the Civil War Defenses of Washington By Benjamin Cooling, Walton H. Owen II Publisher: Scar..ecr..ow Press 2010 | 334 Pages | ISBN: 0810867591 , 0810860678 | PDF | 22 MB
Angus Konstam, Peter Dennis - British Forts in the Age of Arthur Osprey Publishing | 2008 | ISBN: 1846033624, 9781846033629 | English | 64 pages | PDF | 30.98 MB Fortress 80