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Observations on Modern Systems of Fortification, Including that Proposed by M. Carnot, and a Comparison of the Polygonal with the Bastion System ...

Sir Howard Douglas

出版	1859
URL	http://books.google.com.hk/books?id=3nVeAHh0w5IC&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN