Gravett, Christopher. Castle / by Christopher Gravett. - London : Dorling Kindersley, 1994. - 63 p. : ill., photo., col ; 30 cm. - Eyewitness guides 49 . - Eyewitness guides 49 . ISBN: 075136021X Subjects--Topical Terms: Castles--history.History--castles.--c1000-c1500