Auer, Michael, author.
Washington, D.C. : U.S. Department of the Interior, National Park Service, Cultural Resources, Preservation Assistance, 1991.
1991
Auer, Michael.
[Washington, D.C.] : U.S. Dept. of the Interior, National Park Service, Cultural Resources, Preservation Assistance : [Supt. of Docs., U.S. G.P.O., distributor, 1991]
1991