How To Catapult A Castle: Machines That . . .
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| Google books | books.google.com |
|---|---|
| Originally published | 2008 |
| Authors | James De Winter |
| Date of Reg. | |
| Date of Upd. | |
| ID | 2087240 |
About How To Catapult A Castle: Machines That . . .
"Presents the science behind building and defending castles including the use of simple machines, such as pulleys and levers"--Provided by publisher.