TY  - BOOK
AU  - Duffy, Christopher,
CN  - UG444
CN  - UG444
CY  - London :
DA  - 1979.
ID  - 31871
KW  - Defensive (Military science)
KW  - Siege warfare
KW  - Offensive (Military science)
KW  - Sieges.
PB  - Routledge & Kegan Paul,
PP  - London :
PY  - 1979.
SN  - 071008871X
T1  - Siege warfare :the fortress in the early modern world 1494-1660 /
TI  - Siege warfare :the fortress in the early modern world 1494-1660 /
ER  -