David Nicolle - Saracen Strongholds AD 630-1050: The Middle East and Central Asia Osprey Publishing | 2008 | ISBN: 184603115X | English | 68 pages | PDF | 29.84 MB Osprey Fortress 76
Samuel Rocca - The Forts of Judaea 168 BC-AD 73: From the Maccabees to the Fall of Masada Osprey Publishing | 2008 | ISBN: 1846031710 | English | 68 pages | PDF | 28.39 MB Osprey Fortress 65
Angus Konstam - British Forts in the Age of Arthur Osprey Publishing | 2008 | ISBN: 1846033624 | English | 68 pages | PDF | 47.17 MB Osprey Fortress 80
Rene Chartrand - French Fortresses in North America 1535-1763: Quebec, Montreal, Louisbourg and New Orleans Osprey Publishing | 2005 | ISBN: 184176714X | English | 66 pages | PDF | 44.43 MB Osprey Fortress 27
Stuart Reid, Graham Turner - Castles and Tower Houses of the Scottish Clans 1450-1650 Osprey Publishing | 2006 | ISBN: 1841769622 | English | 64 pages | PDF | 26.87 MB Osprey Fortress 46
H. W. Kaufmann, J. E. Kaufmann - Fortifications of the Incas: 1200-1531 Osprey Publishing | 2006 | ISBN: 1841769398 | English | 68 pages | PDF | 27.96 MB Osprey Fortress 47