Castles and cannon :
O'Neil, B. H. St. J.
Castles and cannon : a study of early artillery fortifications in England / by B. H. St. J. O’Neil. - Oxford : Clarendon Press, 1960. - xix, 121 p., 24 p. plates : ill. ; 24 cm.
Includes bibliographical references and index.
Ordnance --History.
Castles --History--England.
Fortification --History--England.
Great Britain --History, Military.
UG429.G7 / O64 1960
Castles and cannon : a study of early artillery fortifications in England / by B. H. St. J. O’Neil. - Oxford : Clarendon Press, 1960. - xix, 121 p., 24 p. plates : ill. ; 24 cm.
Includes bibliographical references and index.
Ordnance --History.
Castles --History--England.
Fortification --History--England.
Great Britain --History, Military.
UG429.G7 / O64 1960