J. E. Kaufmann

title	media type	ISBN-13	year of publica- tion	other author(s)
Fortress America: The Forts That Defended America, 1600 to the Present	Paperback	978-0-306-81550-8	2007	H. W. Kaufmann
Fortress America: The Forts That Defended America, 1600 to the Present	Hardcover	978-0-306-81294-1	2004	H.w. Kaufmann
Fortress Europe: European Fortifications of World War II	Paperback	978-0-306-81174-6	2002	Robert M. Jurga
Fortress Europe: European Fortifications of World War II	Hardcover	978-1-58097-000-6	1999	R.M. Jurga
Fortress France: The Maginot Line and French Defenses in World War II	Paperback	978-0-8117-3395-3	2007	H. W. Kaufmann
Fortress France: The Maginot Line and French Defenses in World War II	Hardcover	978-0-275-98345-1	2005	H. W. Kaufmann · Tomasz Idzikowski
Fortress Third Reich: German Fortifications and Defense Systems in World War II	Paperback	978-0-306-81551-5	2007	H. W. Kaufmann · Robert M. Jurga
Fortress Third Reich: German Fortifications And Defense Systems In World War II	Hardcover	978-0-306-81239-2	2003	H. W. Kaufmann · Robert M. Jurga
Medieval Fortress: Castles, Forts and Walled Cities of the Middle Ages	"	978-1-85367-455-6	2001	Robert M. Jurga
The Medieval Fortress: Castles, Forts, And Walled Cities Of The Middle Ages	Paperback	978-0-306-81358-0	2004	H.w. Kaufmann