DETAILS OF FORTRESSES AND PERMANENT FORTIFICATIONS (MILITARY ENGINEERING)
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BTPERMANENT FORTIFICATIONS (MILITARY ENGINEERING)
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UDC623,022.113
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Descriptor GEREINZELHEITEN VON FESTUNGEN UND DAUERBEFESTIGUNGEN (WEHRTECHNOLOGIE)
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Descriptor ENGDETAILS OF FORTRESSES AND PERMANENT FORTIFICATIONS (MILITARY ENGINEERING)
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Descriptor FREDÉTAILS DES FORTERESSES ET FORTIFICATIONS PERMANENTES (GÉNIE MILITAIRE)
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NTCASEMATES (MILITARY ENGINEERING)