/Perry E. Borchers Borchers,Perry E. creator United States Office of Archeology and history preservation Technical services division. text Washington DC Technical Preservation services division,Office of Archeology and historic preservation National Park Service,Dept of the interior:for sale by the Supt.of The Docs.,USDPO.,1977 1977 monographic eng spa vi 38p. ill. 27cm specialized S/N 024-005-00684-2 Bibliography:(p.38). Photogrammetry in Architecture Historic buildings conservation and preservation United States TR693 .B68 1977 81602288 PR-PUCPR 062510 20250308062621.0 298214