Historical Handbook
National Park Service, U.S. Dept. of the Interior
National Park Service historical handbook series
by Omega G. East
National Park Service , For sale by the Supt. of Docs., U.S. G.P.O. 1985 Historical Handbook no. 34
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by Robert M. Utley and Francis A. Ketterson, Jr.
U.S. National Park Service 1969 Historical Handbook no. 40
by John M. Corbett
National Park Service, U.S. Dept. of the Interior 1962 Historical Handbook no. 36
by Robert M.Utley
National Park Service, U.S. Dept. of the Interior 1962 Historical Handbook no. 35
by Albert H. Schroeder and Homer F. Hastings
United States Department of the Interior, National Park Service 1958 Historical Handbook no. 27
by Edward S., Evelyn S. Luce
National Park Service 1952 Historical Handbook no. 1
by Charles E. Hatch, Jr.
United States Department of the Interior 1949 Historical Handbook no. 2