Title: How to catapult a castle
Subtitle: machines that brought down the battlements
First published: 2009
Description: "Presents the science behind building and defending castles including the use of simple machines, such as pulleys and levers"--Provided by publisher.
Subjects: Juvenile literature, Siege warfare, Submarine warfare, War, juvenile literature, Military art and science, Military art and science, juvenile literature
LC classification: UG444 .W56 2009