Curtis, John Obed.
Washington : U.S. Dept. of the Interior, Heritage Conservation and Recreation Service, Technical Preservation Services Division ; for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1979.
1979
Washington, D.C. : U.S. Dept. of the Interior, National Park Service, Preservation Assistance Division : For sale by U.S. G.P.O. Supt. of Docs., 1992.
1992